Recently coal resources of Pakistan are presented by [28] - [41] . Coal discoveries by drilling (Figure 1, Figure 2) at Sor Range and Harnai Gochina are presented.

Drilling data of Sor Range-Deghari Coalfields, Balochistan (Pakistan): In Sor Range-Deghari syncline, four drill holes (SR-1b, SR-2, SR-3 and SR-4) in 1989 was drilled by the Geological Survey of Pakistan for coal exploration. Drill holes encounter in the surface alluvium, Oligocene Nari, Eocene Kirthar, Kingri and Toi Formations. Drill hole SR-1b encounter guide marker conglomerate at depth of 1332 foot. Then the first thin coal seam of 4 inch, second thin coal seam of 3 inch and third thick coal seam of 1 foot and 6 inch (1’ 6’’) were encountered during depth 1387 to 1493 foot (Figure 1). This drill hole closed at depth 1571’. Drill hole SR-2 encounter marker conglomerate at depth of 1618 foot. The first main coal seam of 1 foot and 5 inch (1’ 5’’) encountered. Then the three thin coal seams of 6 inch, 5 inch and 3 inch were encountered after the main coal seam (Figure 1). This drill hole was stopped at depth 1772’. Drill hole SR-3 encounter marker conglomerate at depth of 1561 foot. Then after the conglomerate, the core loss occurred in about 10 feet single run. During this run the coal cuttings were observed in the drilling mud. Drilling continued upto 1735 foot depth with

well core recovery but no coal seam was observed. Geophysical logging was operated and their interpretation resulted into three coal seams 1’ 2”, 5” and 2’ 8” (Figure 1) with composite thickness of 4’ 3” (Figure 1) in a single run of about 10 foot when core loss occurred. These coalfields found in the long and arc shape

syncline (Figure 1) with low to moderate dips. Coal is hosted by Early Eocene Toi Formation (30 - 75 m). Coal reserves estimated 4.77 mt [38] , 9.3 mt workable reserves [1] 53 mt total reserves [39] and 34 mt [40] which included 6 mt proved, 12 mt probable and 16 mt as possible resources, and 35.70 mt coal reserves of Sor Range and 14.40 mt coal reserves of Deghari coalfields [41] . The recent investigations show 54.5 mt total reserve of Sor Range-Sinjidi-Deghari coalfields [30] . The reference [30] increased the coal reserves on the basis of new coal exploration (Figure 1). According to [30] the Sor Range reserves are 39.44 mt with detail as measured 6.48 mt, indicated 12.96 mt and inferred and hypothetical reserves at 20 mt and Sinjidi-Deghari reserves are 15.08 mt with detail as measured reserves 3.36 mt, indicated reserves 6.72 mt, inferred and hypothetical reserves at 5 mt.

Drilling data of Harnai-Gochina-Sangan-e-Pain Coalfields, Balochistan: Two drill holes (SH-3 and SH-4) (Figure 2) were drilled by Geological Survey of Pakistan and make coal seams discovery in Toi Formation. Drill holes encounter in the recent and subrecent alluvium, Oligocene-Miocene Vihowa Group, Early to Late Eocene Kahan Group including Habib Rahi Limestone, Domanda Shale, Pirkoh Limestone and Drazinda shale, Early Eocene Baska, Kingri and Toi Formations.

Drill hole SH-3 encounter marker conglomerate at depth of 1337 foot and then about 20 coal seams like Chamalang coalfields were discovered. Here main 11 coal seams were discovered varying thickness from 1’ to 2’ coal in every coal seam (Figure 2). This drill hole ended at depth 2150’. Drill hole SH-4 encounter marker conglomerate at depth of 1235 foot. Then about 20 coal seams were discovered. Here main 5 coal seams were discovered varying thickness from 1’ to 2’ coal in every coal seam (Figure 2). This drill hole ended at depth at 1900’ 6”. However if this drilling will continue for 100 - 200 feet, it is possible it may discover more workable coal seams like the drill hole SH-3. Drill holes located in the limbs of Gochina syncline (Figure 2). Shahrig areas have high dips (60 - 800) and are faulted. Reference [40] estimated 47 mt with 8 mt measured, 16 mt indicated and 23 mt inferred. Reference [41] estimated 86 mt of coal with 16.7 mt proven reserves and 69.7 mt inferred reserves upto mineable depth of 1200 m. Recently [30] also estimated total reserves of 86.4 mt with detail as 20.9 mt of measured reserves (exposure to 0.4 km depth), 41.8 mt of indicated reserves (0.4 - 1.2 km depth) and 23.7 mt of inferred reserves (1.2 km to 1800 m depth). Reference [30] increased the coal reserves on these coal discoveries.

Gypsum deposits reported by [57] are Spintangi, Nakus, Dungan, Bala Dhaka, Bahlol, Mawand and Mach. Evaluation of Spintangi gypsum deposits carried by [42] . Recently huge gypsum was discovered by present author [6] [7] [8] [9] [10] [42] - [49] . Total 122 gypsum samples from different localities of Barkhan and Kohlu districts, and Manjhail Kharar of Taunsa District were collected from different beds (Figures 3-5) and major constituents CaO, SO₃, H₂O⁺⁻, MgO and insoluble matter were chemically analyzed (Table 1). Among these 117 samples are from Baska and 5 samples from Domanda shale were collected. Among these

16 gypsum samples from Baska and Domanda gypsum were chemically analyzed (Table 2) for almost complete constituents to know the impurities. The chemical

analyses of gypsum show impurities 1% - 2%. From Dera Bugti district area one gypsum sample from Baska gypsum of Sham Wadera Shero Bugti area and 2 samples from Domanda shale of Pirkoh area were collected and analyzed (Table 3) along with other mineral samples.

Gypsum deposits of Barkhan District, Balochistan

Lakha Kach (Rakhni) gypsum deposits host 6 beds (composite 19 - 20 m thick) with total 1 billion tons estimated reserves in 70 m thick Baska Formation. Chemical analyses of samples Gyp-7 to 18 (Figure 3) were shown in (Table 1). Kodi More, Nodo, Ishani, Gadumra, Chang Mari and Baghao gypsum deposits host 2 billion tons/bt gypsum deposits. Kodi More deposits host 6 gypsum beds (composite 19 m thick) in about 50 m Baska Formation. Chemical analyses of samples Gyp-19 to 24 (Figure 3) were shown in (Table 1). Nodo deposits host 6 gypsum beds (composite 15 m thick) in 48 m Baska Formation. Chemical analyses of samples Gyp-25 to 30 (Figure 3) were shown in (Table 1). Ishani deposits host 6 gypsum beds (composite 22 m thick) in about 50 m Baska Formation. Chemical analyses of samples Gyp-31 to 36 (Figure 3) were shown in (Table 1). Baghao (Tumni) deposits host 4 gypsum beds (6.5 m thick) in about 30 m Baska Formation. Chemical analyses of samples Gyp-37 to 40 (Figure 3) were shown in (Table 1). Karcha (Khurcha) gypsum deposits host 0.25 bt gypsum. It hosts 6 gypsum beds (composite 25 m thick) in about 78 m Baska Formation. Chemical analyses of samples Gyp-45 to 50 (Figure 4) were shown in (Table 1, Table 2). Gadumra-Chang Mari deposits host 3 gypsum beds (10 m thick) in about 30 m Baska Formation. Chemical analyses of samples Gyp-51 to 57 (Figure 4, Figure 5) shown in (Table 1, Table 2). Bala Dhaka/Kali Chapri-Karher gypsum deposits host 0.5 bt. It hosts 2 - 3 gypsum beds (3 - 7 m thick) in about 30 - 70 m Baska Formation. Chemical analyses of samples Gyp-41 to 44 and Gyp-76 to 77 (Figures 3-5) were shown in (Table 1, Table 2). Bahlol gypsum deposits host 0.5 bt. It hosts 7 gypsum beds (14 m thick) in 70 m Baska Formation. Chemical analyses of samples Gyp-78 to 84 (Figure 4) were shown in (Table 1).

Gypsum deposits of Kohlu District, Balochistan

Nisau (Vitakri)-Safed gypsum deposits host 3 bt gypsum. It hosts 8 - 9 gypsum beds (composite 25 - 27 m thick) in about 72 - 78 m Baska Formation. Chemical analyses of samples Gyp-67 to 75 and Gyp-113 to 122 (Figure 4, Figure 5) were shown in (Table 1). Janthali gypsum deposits host 0.25 bt gypsum. Kahan-Khattan gypsum deposits host 1 bt gypsum. It hosts 9 gypsum beds (composite 19 m thick) in about 60 m Baska Formation. Chemical analyses of samples Gyp-58 to 66 (Figure 4) were shown in (Table 1, Table 2). Mawand gypsum deposits host 1 bt gypsum. It hosts 3 - 7 gypsum beds (composite 16 - 17 m thick) in about 75 m Baska Formation. Chemical analyses of samples Gyp-103 to 112 (Figure 5) were shown in (Table 1). Bohri Kohlu, Girsini and Lunda-Bahney Wali-Chamalang gypsum deposits host 0.25 bt gypsum. It hosts 2 - 4 gypsum beds (5 m thick) in about 40 - 70 m Baska Formation. Chemical analyses of samples Gyp-85 to 102 (Figure 4, Figure 5) were shown in (Table 1).

Gypsum deposits of Sibi and Harnai Districts, Balochistan

Spintangi gypsum deposits show 16 mt [42] and are located 60 km NNW of Sibi town and accessible through a railway line from Sibi to Harnai.

Gypsum deposits of Dera Bugti District, Balochistan

Dera Bugti district hosts 1.75 bt of gypsum deposits at Pirkoh, Phailawagh-Giandari and Sham Wadera Shero area. One gypsum sample from Baska gypsum of Sham Wadera Shero Bugti area and 2 samples from Domanda shale of Pirkoh area were collected and analyzed (Table 3) along with other mineral samples.

Gypsum deposits of Musakhel District, Balochistan

Musakhel district host Chamoz-Khan Muhammad Kot 1 mt and Drug-Toi Nala-Savi Ragha-Zamray gypsum deposits host 2 bt gypsum reserves [47] .

Gypsum deposits of Taunsa District, South Punjab

Manjhail gypsum deposit: The chemical analyses of samples Gyp-1 to 6 (Figure 3) were shown in (Table 1). The other deposits found from Zindapir anticline and eastern limb of Fort Munro-Sorra, Luni and Manka were mentioned in [17] .

The Early Cretaceous Johan-Dilband and Khad Kucha ironstones (Figure 1) were primarily discovered by present author (M. Sadiq Malkani) and Masud Tariq in 1990 during geological mapping and mineral exploration program ( [54] , pages 1077-1079), [55] . This ironstone is found in lower part of Sembar Shale, recently named as Dilband Formation [56] . According to initial chemical analyses the Fe₂O₃ is varied from 24.79% to 69.75% (Table 4) of Johan-Dilband iron deposits while Khad Kucha ironstone show low grade Fe₂O₃ 24.79% (Table 4). Later on detail survey were carried out by Akhtar Kakepoto and Mian Hassan Ahmad. Further Akhtar Kakepoto and M. Sadiq Malkani also worked on Johan-Dilband ironstones and their extension which resulted the total reserve estimated about 340 million tons including 200 mt proved [56] , and remaining about 140 mt indicated/inferred reserves ( [54] , pages 1077-1079]), [56] . These ironstone thin lense of less than a meter were found in Coalpur and Murdar

Ghar (Kachi and Quetta Districts), Gaz and Zahri Range near Nur Gama (Khuzdar District), and Khad Kucha (Mastung District) areas ( [54] , pages 1077-1079). The Morov river area (Kalat District) may host largely covered iron deposits. Further detail can be seen in ( [54] , pages 1077-1079).

The Oligocene ironstone (Table 3) exists both in Chitarwata of Sulaiman foldbelt and Nari Formation of Kirthar foldbelt. Chitarwata iron is found more than 1 m thick in Zin (high quality) and surrounding areas of Taunsa District. It is exposed just on the sides of Taunsa-Barthi road. This road may be extended to Rara Sham area of Kingri (Musakhel, Balochistan). Zin area iron deposit (near Barthi, Koh Sulaiman Tehsil, Taunsa District) is small but seems to be extensive. It extends (but not thick) northward to Chitarwata area of Taunsa District, southward to Dera Ghazi Khan and Rajan Pur, Dera Bugti, Kohlu, Sibi and Kachi districts. This Chitarwata Formation iron (Figure 1) is found with silica sand in Loti anticline area of Dera Bugti. It is exposed just on the sides of Dera Bugti-Kashmor road. Its chemical analysis show as low grade iron Fe₂O₃ 24.25% (Table 3). Other impurities are SiO₂ 72.32%, CaO 2.24%, Al₂O₃ 0.95% and MgO in traces. Dera Bugti iron deposit seems to be small but extensive. The ironstone in Nari Formation is exposed in the Sor Range anticlinal area and extends further south ward Kirthar foldbelt. Nari occurs in both eastern Kirthar (such as Sehwan and other areas) and western Kirthar (Karkh and Moola Zahria and other areas) foldbelts. In this way the large reserves of low grade ironstone of Chitarwata Formation in Sulaiman foldbelt and in Nari Formation of Kirthar foldbelts is expected. Other iron ore deposits of Pakistan can be seen in [6] [7] [8] [55] .

Dera Bugti silica sand deposits in the lower part of Vihowa group in the vicinity of Dera Bugti town and also just close to Dera Bugti Sui road in the Loti anticline were reported preliminary by [10] . Loti and other Dera Bugti silica sand deposits (Figure 1) are found in Oligocene Chitarwata Formation located in the central and southern part of Dera Bugti district area. The silica sand is low quality but have thick and large reserves. Here some description, chemical analyses (Table 3) and reserve estimation are being mentioned. Loti low grade quartzose silica sand shows 80.70% SiO₂ (Table 3). The Loti silica sand beds are more than 20 m thick. Its hardness is soft. This silica sand extends into Koh Sulaiman foot mountain areas of Rajanpur, Dera Ghazi Khan and Taunsa districts of South Punjab. On other side it extends into Sibi trough. From Sibi trough to Kirthar basin a strong variation occurs. In Sulaiman basin Chitarwata is terrestrial while its coeval in Kirthar basin Nari and Gaj Formations are marine. In this way expecting encouraging reserves (more than 1 billion tons) of low grade silica sand deposits of Chitarwata Formation and other terrestrial Vihowa, Litra and Chaudhwan formations. Other silica sand deposits of Pakistan can be seen in [6] [7] [8] . This silica sand and terrestrial Vihowa Group (Oligocene to Pliocene) strata may explore uranium because of encouraging results from Vihowa Group of Dera Ghazi Khan and Taunsa Districts of South Punjab.

Here titanosaurian sauropod and theropod are being revised (except Brohisaurus

kirthari titanosauriform). The titanosaurs and theropods found from Vitakri Formation (Figure 1) in many localities which are shown in Figure 4 of [88] and Figure 1 of [89] . The holotypic localities (Figure 4 of [88] ) are being briefly described. Sangiali locality (150 m × 1 km) found on the northern slope of Vitakri dome divided into Lower Sangiali (northwestern Sangiali) yielded Imrankhanhero zilefatmi, mid Sangiali yielded Qaikshaheen masoomniazi and upper Sangiali

(south Sangiali) yielded Ikqaumishan smqureshi. Bor locality (50 × 500 m) located on western slope of Vitakri dome divided into lower Bor (western Bor) yielded Khanazeem saraikistani, mid Bor yielded referred assemblage of Qaikshaheen masoomniazi and eastern Bor yielded referred fossils of Gspsaurus pakistani. Shalghara locality (100 × 200 m) found on southwestern slope of Vitakri dome yielded referred fossils of Pakisaurus balochistani. Kinwa locality (200 × 1 km) found on southern slope of Vitakri dome divided into south Kinwa, southwestern Kinwa, mid Kinwa, north Kinwa and top Kinwa (eastern Kinwa). South Kinwa yielded Sulaimanisaurus gingerichi and Saraikimasoom vitakri and referred assemblage of Gspsaurus pakistani, southwestern Kinwa yielded Pakisaurus balochistani, mid Kinwa yielded Khetranisaurus barkhani and referred fossils of

Ikqaumishan smqureshi and Nicksaurus razashahi, north Kinwa yielded Nicksaurus razashahi and top Kinwa yielded Imrankhanshaheen masoombushrai and referred fossils of Khanazeem saraikistani. Alam locality (100 × 600 m) found on southeastern slope of Vitakri dome divided into south Alam, central or mid Alam, and north Alam. Central/mid Alam yielded Gspsaurus pakistani and Maojandino alami, north Alam yielded referred fossils of Pakisaurus balochistani. Mari Bohri (Kachi Bohri) locality found on eastern plunge of southern Fazil Chel-Mari Bohri anticline. Mari Bohri is divided into north Mari Bohri which yielded Marisaurus jeffi and south Mari Bohri yielded Balochisaurus malkani. Besides Sangiali, Bor, Shalghara, Kinwa and Alam localities, the following localities host observed bones. Dada Pahi locality PDL-17 (N 29˚40'50" and E 69˚24'38") found on eastern slope of Vitakri Dome and has observed bone assemblage. East

Alam PDL-18 locality is located on southeastern slope of Vitakri dome. These are four major zones of east Alam 18. First zone is L-shaped (N 29˚41'22"

and E 69˚24'11") located northwestern part of East Alam area has oberved bone assemblage. Second zone is straight exposures (N 29˚41'22" and E 69˚24'21") hosts observed bone assemblage of Ikqaumishan smqureshi. This second zone is east of zone first. Third zone is eastern zone of east Alam (N 29˚41'08" and E 69˚24'25") host observed bones. This zone has southward bend from second zone. The fourth zone is around the central ridge (N 29˚41'09" and E 69˚24'11") host observed bone assemblage. Rosmani locality PDL 20 has observed bones (N 29˚41'34" and E 69˚24'16"). Bones found in the grid site and also in surroundings. Many intact bones were also found (pages 1097-1098 of [54] ). The bones of

titanosaurs sauropod collected from Vitakri Formation represent about 60% vertebral elements, about 5% cranial elements and appendicular elements about

35% [92] . Although cranial 5% is in low fraction but have significant and diverse snouts and other cranial materials. Among vertebral elements the cervical, dorsal and sacral vertebrae are about 30% and caudal vertebra are about 30%. Anterior, mid and distal caudal vertebrae have balanced fraction. Among vertebrae the some are only centra and some have articulated partial neural arches and a few are almost complete vertebrae. Besides these, numerous partial neural arches

were also collected. Among appendicular elements, the femora, tibiae, humeri, ulnae and scapulae were common, while pelvic girdles were less in fraction.

Gspsauridae [81] vide [88]

Represented by Gspsaurinae [81] vide [88] , which includes Gspsaurus pakistani, Maojandino alami, Ikqaumishan smqureshi, and new genus and new species Imrankhanshaheen masoombushrai).

1) Gspsaurus pakistani [79] vide [88]

Its holotypic and referred specimens (Figures 8-11), type and referred localities, horizon and age, year of informal and formal description, number of individual and basinal distribution were mentioned in (Table 8). Its fossils are described and figured in [84] . Its diagnostic features, comparison and brief descriptions are presented as below.

Snout, Dentaries and posterior skull: Its snout (Figure 8, Figure 9) is large than snout of Saraikimasoom vitakri (Figure 13, Figure 14). Its upper jaw and teeth arcade are U-shaped like Saraikimasoom vitakri. Its lower jaw/dentary teeth arcade is V-shaped, while Saraikimasoom vitakri from Pakistan and Mansourasaurus shahinae [100] from northern Egypt, Africa show U-shaped lower teeth row. Its teeth are slender and larger than Saraikimasoom vitakri and Nicksaurus razashahi teeth. Its dentary ramus is thick and deep like Khanazeem saraikistani (Figure 21), while Saraikimasoom vitakri has relatively thin and shallow dentary ramus. Its snout and partial skull elements are pneumatic like Saraikimasoom vitakri, Nicksaurus razashahi and Khanazeem saraikistani. Its dentary rami lack prominent fibrous/ridges on lateral side, while Khanazeem saraikistani has coarse, thick and subparallel elongated ridges oriented anteroposteriorly. Its teeth are moderately spaced with each other (Figure 8, Figure 9), while Saraikimasoom and Nicksaurus have closely contacted teeth (Figures 13-15), and Khanazeem saraikistani has wide space between teeth (Figure 21).

Vertebrae: Its reported vertebrae mostly represent centra, while numerous neural arches are found with this assemblage (now found in GSP museum, but not documented so far). These vertebrae are also described [74] and its measurements are shown in Tables 1-3 of [74] . Cervicals are opisthocoelous, pneumatic and broad. Centra of anterior cervicals are small while centra of mid cervical are large and then centra of posterior cervical are moderate in size. Its parapophysis are located posterolateral part in anterior cervicals and shifting anteriorly as series go posteriorly. Its mid neck is heavy, stocky and strongly broad transversely. Centra of dorsal vertebrae are broad, pneumatic and opisthocoelous (Figure 10). Dorsal vertebral neural arch (GSP/MSM-82-4) from south Kinwa consists of partial neural spine, diapophysis, prezygapophyses, postzygapophyses neural canal and surrounding areas. This was previously reported as atlas-axis complex, now identified dorsal neural arch (verbal communication and discussion with Dr. Jeffrey A. Wilson Mantilla regarding our running collaborative report). Another similarly portion of neural arch is also reported for Qaikshaheen masoomniazi neural arch GSP/MSM-123-2 found from mid Bor (see below). This south Kinwa neural arch belongs to mid or posterior dorsal

vertebrae because of its close position to plane of symmetry. Its preserved diapophysis is arc shaped and laterally occurring. Its prezygapophysis is triangular shaped while postzygapophysis is relatively large and subrectangle shaped? It is pneumatic and has many well preserved elongated coels and laminae in anterior, lateral, posterior and dorsal views (Figure 11). An infraprezygapophyseal lamina goes from prezygapophyses to the sides of neural canal. Another lamina runs from prezygapophysis to diapophysis. A lamina between the left and right prezygapophysis is also found. Further an arc shaped lamina started from the laterodorsal part of centrum and run toward parapophysis (Figure 11). Its neural canal is slightly broad transversely. Its neural spine is slightly broad transversely (Figure 11). Its neural spine is transversely broad and expanded at summit (Figure 11), while Qaikshaheen masoomniazi has squat profile, Balochisaurus malkani has short spine and Isisaurus colberti spine is dorsoventrally long [101] . Caudals found positioned in anterior (known by well developed transverse process; (Figure 11), mid and posterior series. Caudals are procoelous and neural arch migrated anteriorly. The transverse process of slightly broad anterior caudals extends downward upto mid centrum. Its anterior caudals are slightly broad. Mid caudal centra are slightly tall with somewhat ventral reduction but ventral reduction is less than Balochisaurus, Qaikshaheen and Nicksaurus. Its mid caudals have subcircular prezygapophysis. Its postzygapophysis are laterally facing. Its broad anterior caudal has very broad neural canal, while mid caudals have subcircular neural canal. Its mid and posterior caudals have restricted posterior articular condyle. Its distal caudals are cylindrical shape. Its caudal centra are similar to vertebral series of Alamosaurus [102] .

Scapula: It’s left and right proximal scapula especially the glenoid area (Figure 10) is robust like Imrankhanshaheen masoombushrai, while Marisaurus jeffi has more robust proximal scapula, and Pakisaurus balochistani has slender proximal scapula. Its proximal scapula is almost straight with respect to mid scapula (Figure 11) like Imrankhanhero zilefatmi, while Pakisaurus balochistani has outwardly or laterally directed proximal scapula. Its mid scapula show ventral ridge (Figure 11).

Radius: Its proximal radius has relatively more prominent depression (in dorsal view) (Figure 10) like Pakisaurus balochistani (Figure 20), while Nicksaurus razashahi has feeble dorsal depression (Figure 15). Its proximal radius is slender and gracile, while Nicksaurus razashahi and Pakisaurus balochistani have robust proximal radius. It is elongated oval shape. It’s one pole (may be posteromedial) is thick while another pole is narrow and rounded, while Nicksaurus razashahi and Pakisaurus balochistani have thick pole and another less narrow and rounded pole. Its medial or lateral views show strong expansion of proximal end, while Nicksaurus razashahi and Pakisaurus balochistani have relatively less expansion of proximal end. On lateral view it’s both poles also show more outward bending with respect to shaft, while Nicksaurus and Pakisaurus have relatively less outer bending on narrow pole and very slight bending on thick pole. Proximal end of radius from Chhota Simla [96] [97] is not sufficiently preserved for comparison, however it shows on both side outward bending and expansion of proximal radius like Gspsaurus pakistani radius.

Ilium: The anterior part of iliac blade is preserved. Its lateral side is concave and relatively thin, while medial side is convex medially and more expanded. Its medial convex side has medially extruded thick block (Figure 10) which may be connected with sacral ribs. Its anterolateral corner has step (Figure 10) from lateral side of iliac blade, while Isisaurus colberti [101] and Pakisaurus balochistani has no step and continue as same plane. Its ilium is thick like Pakisaurus balochistani (Figure 19), while Imrankhanshaheen masoombushrai has relatively thin ilium (Figure 7).

Femur: Proximal and distal femur (Figure 10, Figure 11) is preserved. Its femur seems to be slender like Qaikshaheen masoomniazi, while Balochisaurus malkani and Nicksaurus razashahi have robust femora, and Marisaurus jeffi has more robust femora, Pakisaurus balochistani, Khanazeem saraikistani and Imrankhanhero zilefatmi have more slender femora. The Chhota Simla femur [96] [97] is also slender like holotypic femur of Gspsaurus pakistani.

Tibia: Its proximal and distal tibiae are preserved (Figure 10). Its dorsal view of proximal end is subrectangular with anteroposteriorly more broad than transverse width. Its anteroposterior width is about 1.3 times of transverse width (Figure 11), while Balochisaurus malkani and Qaikshaheen masoomniazi have proximal tibia with subequal anteroposterior and transverse width (Figure 17), and Khanazeem saraikistani (Figure 21) and Imrankhanhero zilefatmi have slender tibiae with anteroposterior width is about twice or more of transverse width of proximal tibia. Its proximal tibia is robust while Balochisaurus malkani and Qaikshaheen masoomniazi have more robust and khanazeem saraikistani and Imrankhanhero zilefatmi have slender tibiae. Its distal tibia is transversely expanded with small astragalous fossa just front of short process like Nicksaurus razashahi and Ikqaumishan smqureshi, while Khanazeem saraikistani and Imrankhanhero zilefatmi have large astragalous fossa situated in between the two processes. Its distal tibia is transversely broad like Nicksaurus razashahi and Ikqaumishan smqureshi, while Khanazeem saraikistani and Imrankhanhero zilefatmi have more anteroposteriorly broad distal tibia. Its tibia is robust, while Balochisaurus and Qaikshaheen masoomniazi have more robust tibia and Khanazeem saraikistani and Imrankhanhero zilefatmi have slender tibiae.

Osteoderm: It has large osteodermal ellipsoid with median cut (Figure 11) and resemble with titanosaur (plate 77 of [103] ) (Figure 4 of [104] ) from Argentina, South America (show paleobiogeographic link), while Imrankhanhero zilefatmi from Pakistan, South Asia and Malawisaurus [105] of Malawi, Africa also have large ellipsoidal osteodermal plate but without median cut.

2) Maojandino alami [80] vide [89]

Its holotype (Table 8) (Figure 10) is overlapping (same) with postcranial part of holotype of Gspsaurus pakistani. Gspsaurus pakistani [88] was formally published according to standard set by International Code of Zoological Nomenclature (ICZN) before Maojandino alami [89] . So it is a junior synonym of Gspsaurus pakistani.

3) Ikqaumishan smqureshi [54]

Its holotype is humerus (Table 8) (Figure 12). It was referred humerus (Figure 12) from Rahi Wali. Some vertebrae and other fossils from east Alam were referred to stocky Balochisauridae, now being referred to Ikqaumishan smqureshi. Grut locality yielded caudal vertebrae GSP/MSM-52-9, GSP/MSM-793-9, proximal humerus with prominent head GSP/MSM-694-9 and GSP/MSM-759-9, distal ulna GSP/MSM-252-9, transversely broad distal tibia GSP/MSM-75-9 and right astragalus GSP/MSM-752-9 (Figure 12) which are being referred to Ikqaumishan smqureshi due to sharing of humerus, fossils sizes are also in agreement, similarity of observed caudals of upper Sangiali and also close occurrence of Rahi Wali humerus (GSP/MSM-237-10) locality. A caudal chevron GSP/MSM-321-13 from east Dolwahi 13 is also being referred to it on close finding with its fossils. Further caudals GSP/MSM-50-4 and GSP/MSM-51-4 of south Kinwa and caudal GSP/MSM-49-16 of northwestern top Kinwa (Figure 12) and also observed caudals of east Alam (PDL 18) which are being referred to it because of similarity of caudals with observed caudals of upper Sangiali. Eastern Alam hosts some observed vertebral and appendicular assemblage of stocky titanosaur on southern slope of north eastern portion (page 70 of [75] ) which are being referred to it because of caudal shape similarity. East Alam locality is about 200 - 300 m southeast of Top Kinwa 16 and North Alam 19n. Further a sub oval armour bone GSP/MSM-1095-17 from Dada Pahi locality is being referred due to close occurrence of east Alam assemblage of Ikqaumishan smqureshi. Its basic data are shown in (Table 8). Referred fossils are briefly described as below. Most of these caudals belong to proximal part of caudal series due to well developed transverse process. Its caudals are procoelous and somewhat ventrally reduced. Its caudal chevron is anteroposteriorly compressed like Nicksaurus, while Khanazeem has transversely compressed. Its referred humerus has well developed robust head. Its distal ulna is divided and broad concavity on one side and convexity on another side. It has rugosities on the ventral view. Ikqaumishan distal tibia is expanded transversely, astragalar fossa is relatively small and located in front of its short process (Figure 12) like those of Gspsaurus and Nicksaurus distal tibiae and differ from those of Khanazeem and Imrankhanhero distal tibiae which are expanded anteroposteriorly, astragalar fossa is larger and located in the mid/centre between its long and short processes. An astragalus GSP/MSM-752-9 (Figure 12) was collected. The general shape of astragalous is transversely long and concave or syncline type with limbs. The medial and lateral parts are truncated. The astragalus fossa at the base of ascending process is present. Astragalous posterior fossa shape is undivided. The lateral surface of the ascending process is straight inclined downward or mildly convexing profile generally inclining downward. This astragalous body is long and concave transversely. It forms the transversely oriented axis syncline with anterior and posterior limbs. These limbs are named as anterior limb and posterior limb due to their occurrences. The anterior limb convex maximum form ridge in the lateral one third distance from lateral corner. From maximum peak or ridge of ascending process, on both sides laterally and also medially the inclination started toward medial and lateral base. Posterior limb behavior is same as anterior limb but difference is that the posterior limb peak is lower than anterior limb. Both limbs trend transversely separated by an elongated depression or groove which is also oriented transversely. Between the anterior and posterior ridges is a deep astragalous fossa. Further detail description was found in [54] . Its osteoderm GSP/MSM-1095-17 is a relatively thick suboval plate than Imrankhanshaheen, while Gspsaurus and Imrankhanhero have large, very thick ellipsoidal plates. It has mosaic of large ossicles/polygons. It has concavity on one corner (Figure 12).

4) Imrankhanshaheen masoombushrai new genus and new Species

Systematic Paleontology

Dinosauria; Saurischia; Sauropoda; Titanosauriformes; Titanosauria; Poripuchia [86] vide [88] ; Gspsauridae [81] vide [88] ; Gspsaurinae [81] vide [88] ;

Imrankhanshaheen masoombushrai new genus and new species (Figure 6 & Figure 7)

Holotype: Partial braincase (GSP/MSM-2-16 and GSP-UM 7000), dorsal vertebrae GSP/MSM-131-16 and GSP/MSM-132-16, anterior dorsal vertebra GSP/MSM-256-16, dorsal vertebrae with ventral ridge GSP/MSM-774-16 and GSP/MSM-511-16, two coosified sacral vertebrae GSP/MSM-137-16, two coosified sacral vertebrae GSP/MSM-776-16, mid caudal vertebrae GSP/MSM-34-16 and GSP/MSM-35-16, distal caudal vertebra GSP/MSM-153-16, left and right distal scapulae GSP/MSM-250-16 and GSP/MSM-176-16, mid humerus GSP/MSM-468-16, left and right proximal ulna GSP/MSM-175-16 and GSP/MSM-240-16, distal ulna GSP/MSM-74-16, distal radius GSP/MSM-160-16, metacarpal GSP/MSM-1036-16, acetabulum in 2 pieces GSP/MSM-147-16 and GSP/MSM-148-16, proximal right tibia biconvex lense shaped GSP/MSM-73-16, left and right proximal fibulae GSP/MSM-76-16 and GSP/MSM-77-16, convex part of sternal GSP/MSM-1014-16, sternal part GSP/MSM-604-16, part of ilia GSP/MSM-557-16, neural spine/osteoderm with wound mark GSP/MSM-150-16, vertebral process/distal spine GSP/MSM-391-16, distal cervical ribs GSP/MSM-328-16, GSP/MSM-329-16, neural spine GSP/MSM-767-16, two mosaic type osteoderm GSP/MSM-83-16, GSP/MSM-1035-16 (Figure 6, Figure 7) found from Top Kinwa (Table 8). This holotypic assemblage found on surface (10 m × 5 m area) at the same time, single site, size matches (size agreement among holotypic elements) and no duplication among these holotypic elements, show association of a single individual. Holotypic braincase is found in the southwest corner while proximal tibia is found on the northeast corner while other bones are found mostly in between of these two locations. Holotypic fossil is housed in the museum of Geological Survey of Pakistan, Quetta, Pakistan. Cast number UMMP 11303 of braincase (GSP/MSM-2-16; GSP-UM 7000) is present in the Museum of Paleontology, University of Michigan.

Type locality, horizon and age: Holotype was found in the Topkinwa (Top Kinwa or eastern Kinwa) type locality (Pakistan dinosaur locality 16; shown in Figure 4 of [88] ) at latitude 29.68809 N and longitude 69.4002 E (N 29˚41'17.60"; E 69˚24'0.72") of Vitakri dome area, Barkhan district, Balochistan Province, Pakistan. This holotype is found a few meters west of dividing line between the Kinwa stream and Alam stream. Host horizon of holotype is the upper shale unit (Figure 1) caped by upper sandstone unit of Vitakri Formation (Table 1 of [90] ) of Fort Munro Group [62] [63] . According to stratigraphic position and previously well dated Maastrichtian Pab Formation (lower formation) and well dated Paleocene formations (upper formations), the age of Vitakri Formation considered Late Cretaceous, more specifically latest Maastrichtian 67 - 66 Ma ( [17] pages 903-906, [73] [75] [88] [89] ). This type locality also yielded holotypes of mesoeucrocodile Pabwehshi pakistanensis [98] and pterosaur Saraikisaurus minhui [88] .

Etymology: The genus name Imrankhanshaheen honors the winner of world cup and Former Prime Minister of Pakistan Imran Khan and great journalist Imran Khan to support poor peoples of Koh Sulaiman Range and Sulaiman Basin of Pakistan which is the host of these fossils, and Shaheen, Saraiki for king. The genus name Imrankhanshaheen can be pronunciated as Imran Khan Shaheen. The species name Imrankhanshaheen masoombushrai is after the masoom, Saraiki language for innocent, bushrai, to honor the former first lady respected Bushra Bibi (wife of Former Prime Minister of Pakistan Imran Ahmad Khan Niazi). The species name Imrankhanshaheen masoombushrai can be pronunciated as masoom bushrai.

Diagnosis: Imrankhanshaheen masoombushrai medium sized sauropod shares with the Titanosauria on the basis of procoelous caudal vertebrae with anteriorly set neural arch and prominent olecranon process of ulna. It shares with more/most derived forms as mid caudal centra with a ventral longitudinal hollow while posterior caudal lack this feature. It shares with Poripuchia being procoelous distal caudal. It shares with Gspsaurinae Gspsaurid on the basis of robust tibia (anteroposterior width is round about 1.3 time of transverse width) and somewhat ventrally reduced mid-caudals. Its diagnosis and comparisons are as follows as. Imrankhanshaheen masoombushrai has small braincase with broad occipital condyle. Its braincase has a prominent supraoccipital wedge and proatlantal facets. Its occipital condyle is deflected ventrally and occipital condyle facing posteroventrally (Figure 6) like Dongargaon braincase ISI R199 [106] and Rahioli braincase ISI R467 [107] from latest Cretaceous of India, Bonatitan reigi [108] [109] and Antarctosaurus (MACN 6904; [103] [110] from Argentina, South America and Nemegtosaurus [111] from Late Cretaceous of Mongolia, Asia, while in contrast Jainosaurus Bara Simla braincase (GSI K27/497; [93] , fig. 5) and Bara Simla Jabalpur braincase ISI R162 [107] from latest Cretaceous of India, Vahiny Depereti [112] from Late Cretaceous of Madagascar, Malawisaurus [105] from Malawi, Africa, Saltasaurus PVL 4017 [103] , Muyelensaurus [113] and Puekunsaurus [114] , Kaijutitan maui [115] from Argentina, South America, Quaesitosaurus [116] from Late Cretaceous of Mongolia, Asia and Phuwiangosaurus sirindhornai [117] from early Cretaceous of Thailand, Asia show occipital condyle parallel to skull roof.

Its broad supraocipital wedge is prominent (Figure 6) like Dongargaon braincase ISI R199 [106] and Rahioli braincase ISI R467 [107] from India, Bonatitan reigi [108] [109] from Argentina. Its small circular proatlantal facets on exoccipital is prominent like Dongargaon braincase ISI R199 [106] from India, and Bonatitan reigi [108] [109] from Argentina, while in contrast Rahioli braincase ISI R467 [107] from India has no this feature. Its supraoccipital has no prominent groove along the median suture like Rahioli braincase ISI R467 [107] from India, while Dongargaon braincase ISI R199 [106] from India and Bonatitan reigi [108] [109] from Argentina, both have prominent groove along median suture of both fellows. Its braincase has well developed longitudinal depression on the lateral flanks of supraoccipital wedge like Bonatitan reigi [108] [109] from Argentina, while Rahioli braincase ISI R467 [107] and Dongargaon braincase ISI R199 [106] from India have no such well developed depressions. Its braincase has well developed depression just on the anterior of proatlantal facets, while this depression is not found in the braincase of Bonatitan reigi [108] [109] from Argentina, Rahioli braincase ISI R467 [107] and Dongargaon braincase ISI R199 [106] from India. Its braincase has feeble sutures of different elements like those of Bonatitan reigi [108] [109] from Argentina, while Dongargaon braincase ISI R199 [106] from India has well developed sutures in different elements. Its braincase has dorsoventrally elongated subrectangular shaped with little convex in the central lateral width, while the foramen magnum of Dongargaon braincase ISI R199 [106] from India has well developed vaulted door shape and Rahioli braincase ISI R467 [107] from India has well developed oval shape elongated dorsoventrally.

The braincase of Imrankhanshaheen masoombushrai has II, III and V nerves forming compositely straight line (Figure 6) like those of Dongargaon braincase ISI R199 [106] India, while Rahioli braincase ISI R467 [107] from India has well developed arc shaped (medium to tight anticline shaped) these nerves composite line and the braincase of Bonatitan reigi [108] [109] from Argentina has feeble arc shaped (broad anticline shaped) these nerves composite line. Its cranial nerve III shape is subrectangle, while Dongargaon braincase ISI R199 [106] and Rahioli braincase ISI R467 [107] is dorsoventrally longitudinal oval shaped. Its cranial nerve V shape is dorsoventrally longitudinal oval shaped like those of Rahioli braincase ISI R467 [107] , while Dongargaon braincase ISI R199 [106] cranial nerve V shape is triangle shape convexing laterally. Its cranial nerves IX-XI shape is large rectangle shape, while Dongargaon braincase ISI R199 [106] cranial nerves IX-X shape is small rectangle shape. Its occipital condyle is strongly broad like Dongargaon braincase ISI R199 [106] and Rahioli braincase ISI R467 [107] from India, while in contrast Jainosaurus Bara Simla braincase (GSI K27/497; [93] : fig. 5) and Bara Simla Jabalpur braincase ISI R162 [107] show strongly less broadness. Its occipital condyle base is broad like those of Dongargaon braincase ISI R199 [106] , while Rahioli braincase ISI R467 [107] form sharp convexing downward shape in posterior view.

Its cervical centra transverse width is about one and half of dorsoventral height of centrum (Figure 7), while Gspsaurus pakistani have cervical transverse breadth about 1.3 - 1.4 time of dorsoventral width, Nicksaurus razashahi has cervical centra transverse breadth is strongly more than 1.5 time of dorsoventral height, and Isisaurus colberti has cervical breadth about 1.3 time of dorsoventral width. Its cervical centrum size is small like Qaikshaheen masoomniazi, Balochisaurus malkani and Pakisaurus balochistani, while Nicksaurus razashahi has smallest size, Isisaurus colberti is moderate in size and Gspsaurus pakistani have largest size among Pakistani titanosaurs. Its cervical pleurocoel is short subrectangle shape. Its anterior dorsal centra are broad, pneumatic with short oval shaped pleurocoel. Its mid-posterior dorsal centra are tall with ventral keel/ridge. Sacral vertebrae are coosified, broad and has ventral keel. Mid caudal is somewhat ventrally reduced, heavy and have subcircular parapophysis and oval shaped postzygapophysis. The distal caudal is long cylindrical and has suboval shaped parapophysis (Figure 7).

Its sternal has medial convexity. Its proximal scapula is robust like Gspsaurus pakistani and Qaikshaheen masoomniazi, while Marisaurus jeffi have more robust and Pakisaurus balochistani has slender proximal scapula. Its lateral ray/process of proximal ulna is slender and has depression on dorsal view. Its lateral ray end of proximal ulna has rounded edge, while Balochisaurus malkani has sharp blady edge. Its distal radius is beveled medially like those of Pakisaurus balochistani radius. Its distal radius has a dorsoventrally groove in the median side. Its distal radius has mud crack type rugosities. Its metacarpal end is strongly expanded, while Qaikshaheen masoomniazi has moderate expanded end and Imrankhanhero zilefatmi has slightly expanded metacarpal end. Its acetabulum glenoid surface has prominent subparallel anteroposteriorly elongated fibrous structure, while Balochisaurus malkani and Pakisaurus balochistani lacks or have feeble these structures. The acetabular pubic peduncle is thick and triangular shaped while ischial peduncle is relatively thin and platy. Imrankhanshaheen masoombushrai acetabular pubic peduncle is triangular shaped (about 45˚ angles from both end of base), while Balochisaurus malkani acetabular pubic peduncle is triangular (about 70˚ and 30˚ angles from both end of base), Pakisaurus balochistani acetabular pubic peduncle is long oval shaped and Isisaurus colberti has subtriangular (about 20˚ angles from both end at base) [101] . Its ilium is relatively thin plate as compared to Pakisaurus balochistani and Gspsaurus pakistani ilia. Its proximal tibia is asymmetrical biconvex lense shaped (Figure 7), while Gspsaurus pakistani has subrectangle shaped (Figure 11). In both cases the anteroposterior width is about 1.3 times of transverse width, while Khanazeem saraikistani and Imrankhanhero zilefatmi have anteroposterior width twice of transverse width and Balochisaurus malkani and Qaikshaheen masoomniazi have subequal anteroposterior and transverse widths. Its fibulae are relatively small and slender to compensate the robust tibia for balancing body weight. Its osteoderms are diverse scute with mud crack type grooves and lense shaped plate having fibrous radial structures originating from outer edge and meets with fellow in the mid (Figure 7). Further diagnostic features, comparison and description are as below.

Description of elements

Braincase: Holotypic braincase (GSP/MSM-2-16 and GSP-UM 7000) (Figure 6) consists of frontal and parietal (skull roof), supraoccipital, exoccipital-opisthotic, basioccipital, basisphenoid, laterosphenoid, prootic and orbitosphenoid (basicranium) (Figure 6). This braincase was found with appendicular assemblage (Figure 7) by present author from the eastern extremity or top of Kinwa stream. Its comparison with other relevant sauropod is mentioned above. Its further description can be seen in [69] [85] . The reference [69] has mistyped the braincase from “Rahioli, Gujarat” (ISI R 162) instead of braincase from “Bara Simla Jabalpur” (ISI R 162). The correct is braincase from Bara Simla Jabalpur (ISI R 162) from central India (according to [107] ). Further the reference [69] has mistyped the braincase from “Bara Simla” (ISI R 467) instead of braincase from “Rahioli” (ISI R 467). The correct is braincase from Rahioli (Raiholi) (ISI R 467) from western India (according to [107] ). The reference [69] has mistyped/miscoordinated that the top Kinwa braincase is found isolated, actually it was found with assemblage mentioned above in the holotype of Imrankhanshaheen masoombushrai.

Vertebrae: Its cervical centrum is broad, opisthocoelous and having a relatively short subrectangle shaped pleurocoel. Cervical ribs are V-shaped in the mid and show broad curvature at the end. Its dorsal vertebra is slightly broad showing its position anterior or posterior due to broad cervical and sacral, however the mid dorsal are not broad. Sacral are broad with ventral keel (Figure 7). Caudal vertebrae are procoelous, anteriorly migrated neural arch and slightly tall. Its caudals are ventrally reduced but less than Qaikshaheen masoomniazi and Balochisaurus malkani. It’s distal caudal is cylindrical and long with subcircular anterior coel.

Sternal Plate: Its medial and anterior parts are found (Figure 7). Its medial part convex medially. Its anterior portion is relatively more thick than medial portions.

Scapula: Left and right proximal scapulae are preserved. Its proximal scapula is robust like Gspsaurus pakistani and Qaikshaheen masoomniazi, while Marisaurus jeffi have more robust and Pakisaurus balochistani has slender proximal scapula.

Humerus: Its mid humerus is preserved (Figure 7). Its minimum transverse with is 12cm. Its transverse width is almost same as humerei of Qaikshaheen masoomniazi and referred Rahi Wali humerus of Ikqaumishan smqureshi and broader than that of Imrankhanhero zilefatmi and Ikqaumishan smqureshi.

Radius: Its distal radius is preserved. It is beveled medially. It shows polygon type rugosities on the ventral surface (Figure 7).

Ulna: A pair of proximal ulna (MSM-175-16, MSM-240-16) and a distal ulna MSM-74-16 (Figure 7) from Top Kinwa, proximal ulna MSM-271-2 and distal ulna MSM-852-2 from mid-Bor locality were found (Figure 7). The proximal ulna is triradiate, rugose and bears a prominent olecranon process. There is a marked concave depression on the proximal lateral side. It has also depression on the medial side also. The posterior side have slight depression and almost smooth. The ulna gradually tapers toward down. Distal ulna is divided and broad concavity on one side and convexity on another side. Distal ulna has rugosities on the ventral view. The lateral ray is slender and has depression on dorsal view. Its lateral ray has rounded edge while Balochisaurus malkani has sharp blady edge. Its anterior ray maximum width is about 5 - 6 cm like others found in Pakistan.

Metacarpal: A metacarpal shows rectangle shaped end (Figure 7). Its metacarpal end is strongly expanded like Balochisaurus malkani, while Qaikshaheen masoomniazi has moderate expanded end and Imrankhanhero zilefatmi has slightly expanded metacarpal end.

Acetabulum: A partial acetabulum (MSM-147-16, MSM-48-16) (Figure 7) were collected. It is arc shaped with well developed glenoid. Its glenoid surface has prominent subparallel anteroposteriorly elongated fibrous structure, while Balochisaurus malkani lacks or has feeble these structures. The acetabular pubic peduncle is thick and triangular shaped while ischial peduncle is relatively thin and platy. Its comparison mentioned above.

Ilium: A partial ilium MSM-216-19 (Figure 7) was collected. This ilium is relatively thin plate as compared to Pakisaurus and Gspsaurus pakistani ilia.

Tibia: Its proximal tibia is asymmetrical convex lense shaped while Gspsaurus pakistani has subrectangle shaped (Figure 7). In both cases the anteroposterior width is about 1.3 times of transverse width, while Khanazeem saraikistani and Imrankhanhero zilefatmi have anteroposterior width twice of transverse width and Balochisaurus and Qaikshaheen masoomniazi have subequal anteroposterior and transverse widths. The robust tibiae of Imrankhanshaheen masoomniazi and Gspsaurus pakistani have general similarity with those of Atsinganosaurus velauciensis titanosaur from the upper Cretaceous of southern France [118] and Mendozasaurus neguyelap titanosaur from the upper Cretaceous of Mendoza Province, Argentina [119] and Saltasaurus loricatus from late Cretaceous of Argentina (plate 45 of [103] ).

Fibula: Left and right proximal fibulae (Figure 7) have rugosities on proximal part on dorsal view only, while the proximal fibula of Pakisaurus balochistani has rugosities on proximal part on dorsal view and dorsoventrally elongated rugosities also extended into adjoining medial and lateral part also. Proximal fibula have medial scar. There is a relatively shallow ridge in the medial scar, starting from close to center of proximal surface and trending obliquely downward. Its fibular diagonal ridge is feeble, while Pakisaurus balochistani and Imrankhanhero zilefatmi have prominent medial diagonal ridge on proximal fibula. The shaft cross section just below the scar is triangular convexing laterally. Its proximal fibula is relatively small like Balochisaurus malkani, while Imrankhanhero zilefatmi and Pakisaurus balochistani have large proximal fibula. It is noted by [54] that slender fibula is adjusted by robust tibiae, and robust fibula is adjusted by slender tibia to balance heavy body weight.

Osteoderms and armor plates: Two mosaic type armour bones (Figure 7). Its subrectangle shape plate has 9 cm diameter and made up of irregularly shaped nodule/polygon ossicles of diameter ranging from half centimeter to 4 centimeters, separated by internal ducts of 1 - 3 mm wide. The second mosaic plate is subrectangular with concavo-convexo shape. A relatively large convex lense shaped plate representing radial thread radiated from end pole and joined at plane of symmetry.

Saraikimasoomidae New Family

Definition: Saraikimasoom, Nicksaurus, their most recent common ancestor and all of its descendants. Its dental formula is 4-13/9-11. Saraikimasoomidae based on its type genus and species Saraikimasoom vitakri. It is represented by U-shaped lower and upper teeth rows, relatively short, slender and tapering toward tip teeth which are contacted closely, while Gspsauridae has V-shaped lower teeth row and U-shaped upper teeth row, relatively long, slender and tapering toward tip teeth which are not contacted closely.

Type and only known species: Saraikimasoom vitakri

Type locality, horizon and age: As for type and only species [88] .

Diagnosis: as for type and only species [88] .

Etymology: Saraiki, in honor of Saraiki people and language, masoom, Urdu and Saraiki language for innocent.

Included Species: Saraikimasoomidae is represented by Saraikimasoom vitakri and Nicksaurus razashahi of Saraikimasoominae [81] vide [88] .

5) Saraikimasoom vitakri [79] vide [88]

Its holotypic specimen (Figure 13 & Figure 14) and other basic data are shown in (Table 9). Its snout teeth vary in length from 1 to 2 cm and maximum width 0.3 to 0.5 cm except a few anterior and last teeth. Its dental formula is 4-13/9-11. On lateral view the snout is triangular having about 40˚ anterior slope. It was described well in ( [85] , pages 383-388). Its pneumatic snout is relatively small than pneumatic snout of Gspsaurus. Its lower teeth row is U-Shaped, while Gspsaurus pakistani has V-shaped lower teeth row. Its teeth are relatively short like Nicksaurus razashahi, while Gspsaurus pakistani has long slender teeth. Its teeth are closely contacted with each other, while Gspsaurus pakistani from Pakistan and Rapetosaurus krausei [120] from Madagascar have moderate space between teeth, and Khanazeem saraikistani from Pakistan and Mansourasaurus shahinae [100] from northern Egypt, Africa have widely spaced teeth. Its teeth series are becoming shorter as going back, while Nicksaurus razashahi has alternating a long and a narrow tooth. Its teeth are gradually tapering toward tip like Gspsaurus pakistani and Khanazeem saraikistani, while Titanosaurus rahioliensis [121] from India has equal diameter of teeth length (except tip).

6) Nicksaurus razashahi [79] vide [89]

Its holotypic and referred specimens (Figure 15) and basic data are shown in (Table 9). Its diagnostic features, comparison and descriptions are presented as below.

Partial skull: Jaw articulated with complete 6 teeth (GSP/MSM-138-4n), partial anterior maxilla (GSP/MSM-315-4n) with articulated 2 or 3 teeth, and mid and posterior maxilla/skull bone with 1 tooth (GSP/MSM-314-4n) were found with postcrania. Its teeth are relatively small and slender (Figure 15) like Saraikimasoom vitakri, while Gspsaurus pakistani has large and slender teeth. Its teeth are closely contacted with each other like Saraikimasoom vitakri, while Gspsaurus pakistani teeth have moderate space between teeth (Figure 15), and Khanazeem saraikistani and Mansourasaurus shahinae [100] have wide space between teeth (Figure 15). Its teeth are tapering toward tip like Saraikimasoom vitakri and Gspsaurus pakistani, while Titanosaurus Rahioliensis [121] and Rapetosaurus krausei [120] have equal thickness from base to just before tip. Its larger teeth are alternated by smaller teeth, while this feature is frequently not found in Saraikimasoom vitakri and Gspsaurus pakistani. Its jaw is pneumatic like Saraikimasoom vitakri and Gspsaurus pakistani crania.

Vertebrae: Its cervical centra (Figure 15) are opisthocoelous, pneumatic and small. Its cervical centra transverse width is strongly more than 1.5 time of dorsoventral height, while all other Indo-Pakistani titanosaur has breadth less than 1.5 times. Its cervical centrum is small in size than all Indo-Pakistani titanosaurs. Its dorsal vertebra is broad centrum. Its distal thoracic rib is massive (not spongy) (Figure 15). Its caudals are extremely short than all Indo-Pakistani titanosaurs. Its mid caudals lateral side is slightly concave medially, while Balochisaurus malkani and Qaikshaheen masoomniazi have more concave. Its caudals show relatively less ventral reduction than Balochisaurus malkani and Qaikshaheen masoomniazi mid caudals. Its caudals are broad transversely while all Indo-Pakistani titanosaurs lack this feature. Its caudal chevron is anteroposteriorly compressed especially in the middle and upper part while lower part is subcircular. Its caudal chevron is anteroposteriorly compressed like Ikqaumishan, while Khanazeem chevron is transversely compressed. It may be due to position variation.

Scapula: Its proximal expanded scapula with glenoid (Figure 15) is robust like Gspsaurus pakistani and Imrankhanshaheen masoombushrai, while Pakisaurus balochistani has slender scapula and Marisaurus jeffi has more robust scapula.

Humerus: Its left humerus is preserved while proximal and distal informative parts are not found (Figure 15). Its deltopectoral crest is straight upto preserved portion.

Radius: Its proximal radius has feeble dorsal depression (Figure 15), while Gspsaurus pakistani (Figure 10) and Pakisaurus balochistani (Figure 20) proximal radii have more prominent depression (in dorsal view). Nicksaurus razashahi and Pakisaurus balochistani have robust proximal radius, while Gspsaurus pakistani proximal radius is slender and gracile. Comparison is seen in description of Gspsaurus.

Femur: Its femur is robust like Balochisaurus malkani, while Marisaurus jeffi femur is more robust, Qaikshaheen masoomniazi and Gspsaurus pakistani have slender femur and Pakisaurus balochistani, Khanazeem saraikistani and Imrankhanhero zilefatmi have more slender femur. Its greater trochanter is more horizontal than greater trochanter of femur of Balochisaurus malkani. Its left and right distal femora have gracile, long and more posterior expansion of three posterior processes (radial, tibial and third condyles) than any other titanosaurs from Indo-Pakistan. Its femoral minimum transverse width migrated downward from mid shaft like those of Balochisaurus and Marisaurus, while in contrast the Pakisaurus, Khanazeem, Imrankhanhero, Gspsaurus and Qaikshaheen have minimum transverse width at about mid shaft.

Tibia: Its left and right distal tibiae (Figure 15) are preserved. Nicksaurus distal tibia is expanded transversely, astragalar fossa is relatively small and located in front of its short process (Figure 15) like those of Gspsaurus and Ikqaumishan distal tibiae (Figure 10, Figure 12) and differ from those of Khanazeem and Imrankhanhero distal tibiae which are expanded anteroposteriorly, astragalar fossa is larger and located in the mid/centre between its long and short processes (Figure 21, Figure 22).

Balochisauridae [70] vide [89]

Represented by Balochisaurinae [76] (Balochisaurus malkani and Qaikshaheen masoomniazi) and Marisaurinae [76] (Marisaurus jeffi).

7) Balochisaurus malkani [68] vide [89]

It’s holotypic (Figure 16 & Figure 17) and referred specimens (Figure 17) and basic data are mentioned in (Table 10). Its holotypic material was found from three sites which are about 20 - 30 m away from each other (previously it was mentioned as 50 m [89] , it was estimated and not measured. The northern site yielded a few bones, southern site yielded a complete femur and middle site yielded majority of the bones. Its diagnostic features, comparison and descriptions are as below.

Vertebrae: Only four presacral vertebrae are documented so far, while 15 other partial presacral vertebrae among specimen GSP/MSM-813-15 to GSP/MSM-831-15 are not documented. But it shows a series of vertebrae were found. Further many sacral and presacral vertebrae (of Balochisaurus, Pakisaurus, Imrankhanshaheen and others) were also described [71] and its measurements are shown in Tables 2-4 of [71] . Its cervical centra are broad, opisthocoelous and pneumatic. Its cervical centra are moderate in size like Imrankhanshaheen masoombushrai and Pakisaurus balochistani, while Nicksaurus razashahi has relatively smaller cervicals and Gspsaurus pakistani has larger cervicals especially mid cervicals. Its cervical centra transverse width is about one and half of dorsoventral height of centrum like Imrankhanshaheen masoombushrai, Pakisaurus balochistani, Gspsaurus pakistani, while Nicksaurus razashahi has breadth strongly more than one and half of dorsoventral height. Its dorsal centra are broad and tall. Its broad dorsal centra belong to anterior dorsal due to broad cervicals (but possibly may be posterior dorsal due to expected broad sacrals). The tall centra belong to mid dorsal series [71] . Its tall dorsal centrum includes long lateral pleurocoel with lipped margin which is not found in any Pakistani titanosaurs. Its neural arch of dorsal vertebra GSP/MSM-324-15 includes neural spines, partial prezygapophyses and postzygapophyses (Figure 16). Preserved neural arch GSP/MSM-323-15 (Figure 16) of dorsal vertebra consists of complete neural spine left and right postzygapophysis. This neural arch has distinctive short spine or fan shape short neural spine (Figure 16), while Qaikshaheen masoomniazi [54] has distinct squat profile [54] , and Isisaurus colberti has dorsoventrally elongated spine [101] . Its postzygapophysis plane is not horizontal but inclined and facing dorsolaterally while the plane of postzygapophysis of Qaikshaheen masoomniazi and Isisaurus colberti is nearly horizontal and slightly inclined dorsolaterally [54] [101] . Its postzygapophysis is spatulate with slightly more long in its axis toward dorsolateral, while Qaikshaheen masoomniazi has elliptical postzygapophysis with length 1.5 times of its width [54] , and Isisaurus colberti has more elliptical postzygapophysis with length more than 2 times of its width [101] . Its peak summit of neural spine in posterior view forms sharp and narrow peak, while Qaikshaheen masoomniazi [54] and Isisaurus colberti [101] have broad summit and lack sharp and narrow peak. Its peak summit of neural spine in anterior view forms inclination or slope upto position where prespinal lamina start. Both prespinal and postspinal laminae have same transverse width, while the prespinal lamina of Qaikshaheen masoomniazi is narrower [54] . Its serial position is not found due to lack of coastal articulation, however the occurrence of postzygapophyses close to mid line indicates mid to posterior dorsal vertebra. Its preserved height is 14 cm and width is 12 cm. The anterior face of neural spine is concave bounded by left and right prespinal laminae. Further downward it joins with spinoprezygapophyseal lamina which is comparatively thin and narrow. The medial fossa at the junction of both laminae is transversely wide. The posterior face of neural spine is also concave bounded by left and right postspinal laminae. Prespinal and postspinal laminae ended before summit of neural spine. The neural arch is pneumatic having large and small camellae. Many cervical ribs and proximal, mid and distal parts of thoracic ribs are documented (Figure 16), while numerous pieces of thoracic ribs were collected but not documented so far. Cervical ribs are open V-shaped. Ventrally they are convex forming anteroposteriorly longitudinal ridge and dorsally they form open syncline type long valley. Tuberculum and capitulum of thoracic rib are of subequal size, subrounded capitulum and oval to suboval tuberculum and are marked with a notch in between. The proximal and mid part of the rib is spongy and concavo-convex in cross section. The distal rib is non-spongy.

Caudals found positioned in anterior (known by well developed transverse process; (Figure 16), mid and posterior series. Its first caudal is biconvex like those of Marisaurus jeffi from Pakistan, South Asia, Alamosaurus from USA, North America [102] and Neuquensaurus australis and Pellegrinisaurus powelli from Argentina, South America [103] . Its biconvex first caudal is more broad than Marisaurus jeffi first biconvex caudal. Its caudals are short like Qaikshaheen masoomniazi, while Nicksaurus razashahi has extremely short. Its mid caudals are squarish and strongly reduced in ventral views like Qaikshaheen masoomniazi caudals, while Gspsaurus pakistani, Nicksaurus razashahi, Imrankhanshaheen masoombushrai have somewhat reduced; Pakisaurus balochistani, Khanazeem saraikistani, Imrankhanhero zilefatmi, Isisaurus colberti and Sulaimanisaurus gingerichi have no significant ventral reduction while in opposite Khetranisaurus barkhani has more ventral width than dorsal width. Its lateral side is more concave like Qaikshaheen masoomniazi while Nicksaurus razashahi has slightly concave lateral sides. Its posterior caudals are cylindrical. Its distal caudal neural arch has trirays; including 2 prezygapophyses process and one ray for neural spine and postzygapophyses. Its caudal chevron is anteroposteriorly compressed like Nicksaurus razashahi, while Khanazeem saraikistani is transversely compressed.

Sternal plate: A part of anterior sternal is preserved. It consists of vertically oriented rugosities. Its upper and lower margin forms longitudinal ridges which are sandwiched by a valley type long depression (Figure 17). Its rugosities are prominent (Figure 17) than Pakisaurus balochistani sternal rugosities (Figure 19).

Humerus: Its proximal humerus has well developed head slightly migrated downward, it may be due to any stress (Figure 17). Its deltopectoral crest is destroyed. It has posterior plain surface just below the head like Qaikshaheen masoomniazi, Imrankhanhero zilefatmi, Ikqaumishan smqureshi, while Pakisaurus balochistani has dorsoventrally longitudinal ridge just below the head. Balochisaurus has expanded radial condyle anteriorly (Figure 17) while its shape and position is different than any other titanosaurs from Indo-Pakistan. Balochisaurus malkani has relatively large radial condyle positioned just close to lateral small condyle (Figure 17), while Pakisaurus radial condyle is positioned almost in the centre of distal transversal profile (Figure 19) and Qaikshaheen masoomniazi has relatively small radial condyle which is positioned just close to lateral small condyle (Figure 11 of [54] ). Its distal humerus condyles strongly differ in proportions, while Qaikshaheen and Pakisaurus have subequal proportions, and Imrankhanhero and Isisaurus colberti [101] lack prominent distal radial condyles. Its olecranon fossa is narrower than that of Pakisaurus.

Ulna: Its trirays ulna is gracile (Figure 17). The proximal ulna is rugose and bears a prominent olecranon process. The proximal ulna represents a triradiate structure. There is a marked concave depression on the proximal lateral side. It has also depression on the medial side also. The posterior side have slight depression and almost smooth. Most of ulnae found from Indo-Pakistan are slender and have prominent olecranon process and have long trirays. The lateral ray is slender and has depression on dorsal view. Balochisaurus malkani has sharp blady edge (on lateral view) of slender lateral ray, while Imrankhanshaheen masoombushrai and Pakisaurus balochistani have lateral ray with rounded edge. Its long ray maximum width is about 5 - 6 cm like others found in Pakistan.

Metacarpal: Its metacarpals have expanded rugose ends (Figure 17). Its metacarpal end is strongly expanded like Imrankhanshaheen masoombushrai, while Qaikshaheen masoomniazi has moderate expanded end and Imrankhanhero zilefatmi has slightly expanded metacarpal end.

Acetabulum: The acetabulum is arc shaped with well developed glenoid (Figure 17). Balochisaurus malkani lacks or have feeble long fibrous structures like Pakisaurus balochistani, while Imrankhanshaheen masoombushrai acetabulum glenoid surface has prominent subparallel anteroposteriorly elongated fibrous structure. Its acetabular pubic peduncle is thick and triangular shaped while ischial peduncle seems to be relatively thin and platy like those of Imrankhanshaheen masoombushrai. Balochisaurus malkani acetabular pubic peduncle is triangular (about 70˚ and 30˚ angles from both end of base), while Imrankhanshaheen masoombushrai acetabular pubic peduncle is triangular shaped (about 45˚ angles from both end of base), Pakisaurus balochistani acetabular pubic peduncle is long oval shaped and Isisaurus colberti has subtriangular (about 20˚ angles from both end at base) [101] .

Femur: Its femur (Figure 17) is robust like Nicksaurus razashahi, while Marisaurus jeffi has more robust femur, Qaikshaheen masoomniazi and Gspsaurus pakistani have slender femur, and Pakisaurus balochistani, Khanazeem saraikistani and Imrankhanhero zilefatmi have more slender femur. Its greater trochanter is inclined, while Nicksaurus razashahi has greater trochanter which is relatively close to horizontal. Its femur is relatively moderate in size, while Nicksaurus razashahi, Qaikshaheen masoomniazi, Imrankhanhero zilefatmi and Khanazeem saraikistani has small femora, Pakisaurus and Gspsaurus has large femora, Marisaurus jeffi has more large femur. Its distal femur has lateral autapomorphic concavity on lateral profile just above the lateral condyle, while Khanazeem has lateral autapomorphic concavity just below the greater trochanter.

Tibia: The Balochisaurus malkani has more robust tibia with subequal transverse and anteroposterior width showing strong transverse expansion like those of Qaikshaheen masoomniazi from Pakistan, mid Cretaceous Diamantinasaurus matildae from Australia [122] [123] , late Jurassic Lusotitan atalaiensis from Portugal [124] , Late Cretaceous Lohuecotitan pandafilandi from Spain [125] and Janenschia robusta from the late Jurassic of Tanzania (Africa) [126] , while Gspsaurus pakistani and Imrankhanshaheen masoombushrai proximal tibia is robust and moderately transversely expanded (the anteroposterior width is 1.3 times transverse width), Khanazeem saraikistani and Imrankhanhero zilefatmi from Pakistan and Igai semkhu [127] from the late Cretaceous of Egypt proximal tibiae have transversely compressed flat tibia with more than twice or thrice anteroposterior width than transverse width.

8) Qaikshaheen masoomniazi [54]

Its basic data are mentioned in (Table 10). Its diagnosis, comparisons and descriptions are mentioned in [54] , while here some additions are made. Its two neural arches (GSP/MSM-123-2; GSP/MSM-792-2) from mid Bor and one from mid Sangiali (GSP-UM/Sangiali-1104) (Figure 18) of dorsal vertebrae were found (Figures 2-5 of [71] ; Figure 12 of [54] ). The neural arch GSP/MSM-123-2 is a complement of mid Bor neural arch GSP/MSM-792-2 or mid Sangiali neural arch GSP-UM/Sangiali-1104. Neural arch GSP/MSM-792-2 have neural spine and left and right postzygapophyses (Figure 18). Postzygapophysis length is also slightly less than twice of its width. Postzygapophyses are elongated oval shaped facing lateroventrally. Neural arch GSP-UM/Sangiali-1104 have neural spine and left postzygapophysis (Figure 18). Postzygapophysis length is also slightly less than twice of width. Neural arch of anterior-mid dorsal vertebra GSP/MSM-123-2 (Figures 2-5 of [71] ; Figure 12 of [54] ) includes partial postzygapophyses, prezygapophyses, Parapophyses and diapophysis, only basal portion of neural spine and portions on neural canal. Its many laminae on posterior view were also reported (page 192 of [71] ). The centrodiapophyses lamina extends from the diapophyses downward and joins with the infrapostzygapophyseal lamina, which again extends from the postzygapophyses downward to the floor of the neural canal. The postzygapophseal lamina is directed backward to the postzygapophysis and the supradiapophseal lamina is directed upward to the spine. Many fossae are bounded by these laminae. Further a network of laminae is also found on anterior view of neural arch of anterior dorsal vertebra GSP/MSM-123-2 (Figure 18) which is being described here. A lamina found which connects the left and right prezygapophysis. A lamina extends lateroventrally from prezygapophysis which joins with another lamina which continues medioventrally to the sides of neural canal. A feeble lamina runs downward directly from prezygapophysis to the sides of neural canal. A lamina runs from prezygapophysis to laterodorsal direction, little ahead it bifurcated into two laminae. One continues laterodorsal direction to the diapophysis and another runs to the mediodorsal direction to the neural spine (Figure 12 of [54] ). It has lateral arc shaped lamina started from dorsal part of centrum and continues upto parapophysis. These laminae of Qaikshaheen masoomniazi differs from the dorsal vertebrae of Gspsaurus pakistani and Isisaurus colberti [101] . Its comparison with neural arch of Balochisaurus malkani is as above. Qaikshaheen neural spine is distinctive in its squat profile [92] . Its left coracoid GSP-UM/Sangiali-1112 is also distinctive revealing glenoid lacking lips, and having rounded inferior edge (see comparison with Pakisaurus as shown below). Its many pieces of thoracic ribs were collected from mid Sangiali (miscellaneous fossils in rows 3 & 4 of Figure 6 of [85] ).

9) Marisaurus jeffi [68] vide [89]

Its basic data are provided in (Table 10). Its holotype was found in nearby two sites. The first site includes first biconvex caudal vertebra, scapula, pubis and femur which were found very close to each other. The other site consists of caudal vertebrae in about 10 m long linear assemblage (trending northeast to southwest direction) as surface finds toward southwest from first site. Both these sites may be about 10 - 20 m away (previously it was mentioned about 50 m ( [89] , page 421), it was only tentatively estimated and actually not measured). Caudal vertebrae GSP/MSM-15-15 (previously referred to Pakisaurus [70] ), GSP/MSM-24-15, GSP/MSM-25-15 and GSP/MSM-26-15 (previously referred to Sulaimanisaurus [70] ) found from Mari Bohri, may belong to vertebral series alignment of Mari Bohri type locality and in this way it may belong to type series of Marisaurus jeffi. I remember this series yielded much more than 5 vertebrae in an alignment, so I think these 4 vertebrae (Figure 18) may be found from this vertebral series. Further a dorsal vertebra GSP/MSM-134-8 and a caudal vertebra GSP/MSM-40-8 from Darwaza locality are being referred to it due to similarity of caudals. Its first biconvex caudal shows more broad transversely anterior articular condyle which show broad sacrals. Its posterior articular condyle is subcircular (Figure 18), which is differentiated from broad posterior condyle of Balochisaurus malkani (Figure 16). Its dorsal centrum is broad and pneumatic. Its first caudal transverse process are terminated above the mid height of centrum (Figure 18), while in Balochisaurus the transverse process extended downward (Figure 16). Its proximal scapula and femur are more robust, while other Pakistani titanosaur has robust and slender scapula and femora. Its pubis is robust with proximal and medioventral end expanded (Figure 18).

Pakisauridae [70] vide [88]

Represented by Pakisaurinae [76] (Pakisaurus balochistani and Khanazeem saraikistani), Isisaurinae [76] (Imrankhanhero zilefatmi, Sulaimanisaurus gingerichi,) and Khetranisaurinae [76] (Khetranisaurus barkhani).

10) Pakisaurus balochistani [68] vide [88]

Its holotypic and referred specimens (Figure 19 & Figure 20) and basic data are mentioned in (Table 11). Its diagnostic features, comparisons and descriptions are as below.

Cranial material: A right parietal (with few teeth on its surface) GSP/MSM-353-4 (Figure 20) was collected from south Kinwa. It was found from the holotypic locality of Pakisaurus balochistani, which shows it is a part of holotypic individual. Its parietal faces consist of folded type uneven interdigitating midline sutures but generally the suture is straight. Anteriorly it is contacted with frontal. The parietal extends laterally to form a laterally tapering squamosal process. The distal end of squamosal process is eroded. Posterior view of parietal shows a concavity which inclided slightly anteriorly. The dorsoventral depth of concavity decreases to midline. While this depth is slightly decreased laterally upto preserved portions. This concavity is about 2 cm in the mid. The dorsal margin of concavity of posterior face is slightly rugose. Its parietal is anteroposteriorly expanded in the centre and reduced significantly laterraly like those of Rapetosaurus krausei [120] . Its anterior slope of posterior face occur in most titanosaurs (Rahioli braincase ISI R 162 [107] , Dongergaon braincase ISI R 199 [106] , Jainosaurus Bara Simla braincase GSI K27/497 [93] , Antarctosaurus wichmannionus [110] , Nemegtosaurus [111] , Quaesitosaurus [116] , Malawisaurus [105] and Saltasaurus [103] ). Its elaongated lateral process is common in many titanosaurs except Quaesitosaurus [116] . It also shows supratemporat fenestra (Figure 20).

Vertebrae: Its cervical centra are broad, opisthocoelous and pneumatic. Its cervical centra relative size is moderate, while Gspsaurus pakistani have heavy mid cervicals. Its pleurocoel is elongated oval shaped. Its cervicodorsal is also broad and have short and broad pleurocoel. Its dorsal centra are also broad, opisthocoelous and pneumatic, and have shallow and relatively short pleurocoel. Caudals found positioned in anterior (known by well developed transverse process; (Figure 19), mid and posterior series. It’s anterior caudal is broad and its neural arch extends downward upto mid dorsoventral width like Marisaurus jeffi, while Balochisaurus neural arch extends further downward. Its mid caudals are tall and have no significant ventral reduction. Its posterior caudal is tall, elongated and show a horizontal groove in the mid of posterior articular condyle (Figure 19). Its anterior caudal neural arch is vertical (Figure 19), while Isisaurus colberti caudal neural arch is directed posteriorly [101] . It has robust tall caudals, while Khanazeem saraikistani has more robust slightly tall caudal, and “Titanosaurus indicus” has more slender tall caudal. Its distalmost caudal centrum has median horizontal groove in posterior articular condyle (Figure 20). Its trirays distal caudal neural arch has anteriorly directed 2 prezygapophyses process and one ray for neural spine and postzygapophyses which are directed posteriorly.

Sternal: Its anterolateral and medial portions are preserved (Figure 19). Its media side is convexing medially. The anterolateral edge is maximum thick 6 cm with concave anterolateral border and has anteroventral crest and becoming gradually thin as proceeding posterior and medial directions. The anteroventral crest is diminishing as proceeding posteriorly. There are rugosities on the anterior, anterolateral, anteromedial of anterior of sternal plate. But the intensities of rugosities and thickness on anteroposterior edge of sternal plate of Pakisaurus balochistani are less (Figure 19) than the Balochisaurus malkani (Figure 17). The Pakisaurus balochistani sternal plate is relatively slender and 6 cm thick with feeble rugosities on the anterolateral edge while the sternal plate of the Balochisaurus malkani is relatively robust and stocky and 7 cm thick with strong dorsoventral rugosities on the anterolateral edge. These rugosities show connection with the scapular coracoid region and other fellow. The anteroventral crest is constricted dividing into lower and upper plates like structures. The upper and lower plates show cleavage like structures. Both plates have depressed line in between these plates. The plate is slightly concave on the ventral and dorsal sides. The anterolateral part is thick and sub rounded. From this thick corner the thickness is consistently reduced in the medial side. The anterior end is thickened by an obtuse ridge, which extends over the ventral side for about a decade centimeter. The medial side plate is convex and slightly expanded and rugose for the attachment of fellow. As a whole the medial plate is relatively thin as compared to anterolateral part.

Scapula: Its proximal scapula is slender (Figure 19), while Imrankhanshaheen masoombushrai, Qaikshaheen masoomniazi and Gspsaurus pakistani have robust proximal scapula, and Marisaurus jeffi has more robust proximal scapula. Pakisaurus balochistani has laterally directed (outwardly directed) proximal scapula with respect to mid scapula (Figure 19), while Gspsaurus pakistani and Imrankhanhero zilefatmi proximal scapulae are almost straight (lack outward deflection).

Coracoid: Its coracoid GSP/MSM-366-3 from Shalghara has glenoid lips and its inferior end form sharp and narrow pointed edge (Figure 20), while Qaikshaheen masoomniazi has smooth glenoid (without lips) and rounded inferior edge (Figures 11 & 13 of [54] ). Its coracoid has same width (10 cm) as Qaikshaheen masoomniazi coracoid. Its coracoid has a deep gorge type depression found in between the glenoid and infraglenoid process (Figure 20), while this depression is relatively shallow in Qaikshaheen masoomniazi coracoid (page 1049; Figure 3 and pages 1049 of [90] , its infraglenoid process seems to be extended away like Qaikshaheen masoomniazi.

Humerus: Pakisaurus balochistani has proximal humerus (Figure 19 & Figure 20) with posterior mid ridge and triangular shape of shaft cross section just below the deltopectoral crest, and almost straight and medially inset deltopectoral crest like those of humerus of Diamantinasaurus matildae from Australia [122] [123] [128] and Rapetosaurus krausei from Madagascar [129] , while Gspsaurus pakistani has almost straight and medially inset deltopectoral crest, and posteriorly plain surface just below the head and round shape of medial process, Qaikshaheen masoomniazi has sinusoidal and laterally inset deltopectoral crest, and posteriorly plain surface just below the head and quadrangular shaft cross section just below the deltopectoral crest, and Imrankhanhero zilefatmi and Isisaurus colberti have sinusoidal and medially inset deltopectoral crest and posteriorly plain surface just below the head and elliptical shaft cross section of shaft. Pakisaurus distal humerus has anteriorly expanded medial and lateral condyles and more expanded radial/median condyle, while Balochisaurus has anteriorly expanded medial condyle (ulnar condyle) and more dominantly expanded median condyle (radial condyle) shifted more laterally (than median condyle of Pakisaurus) and feebly expanded lateral condyle which mostly merged with the median condyle (radial condyle), and Imrankhanhero zilefatmi [54] and Isisaurus colberti [101] have distal humerus which have no anteriorly expanded any condyles (radial and ulnar condyles or lateral, medial and median condyles).

Radius: Its proximal radius (Figure 20) has feeble depression on dorsal view like those Nicksaurus razashahi, while Gspsaurus pakistani has relatively more prominent depression. Its proximal radius is more robust (like those of Nicksaurus razashahi) than Gspsaurus pakistani. Its proximal radius is oval shape with one pole thick and another pole relatively narrow. Its proximal radius is relatively less expanded like those of Nicksaurus razashahi, while Gspsaurus pakistani has more expanded proximal end of proximal radius. Its distal radius (Figure 19) is beveled medially like those of Imrankhanshaheen masoombushrai. It also has polygon shaped rugosities on the ventral view like Imrankhanshaheen masoombushrai.

Ulna: Its ulna (Figure 19) is trirays and has prominent olecranon process. Its lateral long process has less prominent depression than Balochisaurus malkani. Its comparison can be seen as above in Balochisaurus malkani.

Metacarpal: Its metacarpals (Figure 19) are robust, while Balochisaurus malkani have slender metacarpal. Its metacarpal have thick and expanded end, while Balochisaurus malkani, Imrankhanshaheen masoombushrai and Qaikshaheen masoomniazi has more expanded metacarpal ends.

Acetabulum: Its acetabulum (Figure 20) lacks or have feeble long fibrous structures like Balochisaurus malkani, while Imrankhanshaheen masoombushrai acetabulum glenoid surface has prominent subparallel anteroposteriorly elongated fibrous structure. Pakisaurus balochistani acetabular pubic peduncle is transversely oval shaped, while Balochisaurus malkani acetabular pubic peduncle is triangular (about 70˚ and 30˚ angle from base), Imrankhanshaheen masoombushrai acetabular pubic peduncle is triangular shaped (about 45˚ angles from both sides at base) and Isisaurus colberti has slightly curved subtriangular (about 20˚ angles from both sides at base) [101] .

Femur: Pakisaurus balochistani femur head is inflected and obliquely oriented dorsally (Figure 19). Pakisaurus balochistani has more slender femur like those of Khanazeem saraikistani, while Qaikshaheen masoomniazi and Gspsaurus pakistani have slender femora, Balochisaurus malkani and Nicksaurus razashahi have robust femora, and Marisaurus jeffi has more robust femora. Its dorsally inflected head is its autapomorphy.

Fibula: Its proximal fibula (Figure 19) is large and anteroposteriorly more wide like those of Imrankhanhero zilefatmi, while Gspsaurus pakistani and Balochisaurus malkani have small and anteroposteriorly less wide fibula. Its proximal fibula has rugosities on proximal end which extends on medial and lateral sides, this feature is not found in Imrankhanhero zilefatmi and Imrankhanshaheen masoombushrai fibula.

Ungual: A pedal skinny ungual GSP/MSM-152-3 found is much deeper dorsoventrally than broad transversely (Figure 20) well shown in Figure 3 of [90] . Its anterior portion is thick and posterior portion forms thin and narrow rounded edge. It is interesting the bone is enveloped by a thin layer of osteodermal skin (Figure 3 of [90] ) which is well described in (page 1065 of [90] ).

11) Khanazeem Saraikistani [90]

Its holotypic materials (Table 11) consist of left and right femora, left and right humeri, right tibia, distal fibula, caudal vertebra and partial dentary ramus with articulated partial teeth (Figure 21) Its referred associated remains are a hind limb elements such as tibia, fibula and metacarpal (Figure 21). Its basic informations are shown in (Table 11). Its diagnosis and formal descriptions are shown in ( [90] , pages 1098-1105). Its distal humerus is being recognized as right proximal humerus, which also include mid humerus (Figure 21). The left proximal and mid humerus is also shown in (Figure 21). The proximal humerus with head is well preserved while its deltopectoral crest is destroyed. It has widely spaced teeth (relatively wide space between two teeth) like Mansourasaurus shahinae [100] from northern Egypt, Africa, which show Indo-Pakistan subcontinent paleobiogeographic link with Africa. Its caudal is more robust and slight tall. Its chevron is transversely compressed while Ikqaumishan and Nicksaurus have anteroposteriorly compressed. Its distinct femora are more slender and have more inflected head and concavity between the proximolateral corner of the femoral head and the lateral bulge (wavy style) [90] . Its slender and almost flat tibia is like those of Imrankhanhero zilefatmi (Figure 22) from Pakistan, and Igai semkhu [127] from the late Cretaceous of Egypt, while Gspsaurus pakistani and Imrankhanshaheen masoombushrai have robust proximal expanded tibia, and Qaikshaheen masoomniazi and Balochisaurus malkani have more robust proximal tibia. Its almost complete tibia is preserved (Figure 21). Khanazeem and Imrankhanhero distal tibiae are expanded anteroposteriorly, astragalar fossa is larger and located in the mid/centre between its long and short processes (Figure 21, Figure 22) and differ from those of Gspsaurus, Ikqaumishan and Nicksaurus distal tibiae which are expanded transversely, astragalar fossa is relatively small and located in front of its short process (Figure 10, Figure 12, Figure 15).

12) Imrankhanhero zilefatmi [54]

Its holotypic fossils are right humerus, right femur and right fibula (Figure 22) (Figure 10 of [54] ). It was referred flattened tibia, fibula and metatarsal from Zubra peak due to sharing fibula shape similarity. South Zubra (located on just southern slope of Zubra peak) yielded caudal vertebrae GSP/MSM-523-7, GSP/MSM-524-7, right mid scapula GSP/MSM-746-7 and osteoderm ellipsoidal plate GSP/MSM-84-7 (Figure 22) which are being referred to it on the basis of close occurrence of Zubra peak tibia, fibula and metacarpal, it may belong to single individual. Further referred tibia K 20/321 (Figures 4a, b, of Plate 1 of [93] ) and right fibula K 27/489 (Figures 5a, b, of Plate 1 of [93] ) from Bara Simla, India were referred to Imrankhanhero zilefatmi due to shape resembling with its South Zubra exemplar’s tibia and fibula. Its basic data are shown in (Table 11). Its some additive description is presented as below. Its anterior caudal vertebrae are broad. Its mid scapula shows no lateral or outward deflection of proximal humerus like Gspsaurus pakistani and probably Qaikshaheen masoomniazi, while Pakisaurus balochistani has laterally or outwardly deflected proximal scapula. Imrankhanhero and Khanazeem distal tibiae are expanded anteroposteriorly, astragalar fossa is larger and located in the mid/centre between its long and short processes (Figure 21, Figure 22) and differ from those of Gspsaurus, Ikqaumishan and Nicksaurus distal tibiae which are expanded transversely, astragalar fossa is relatively small and located in front of its short process (Figure 10, Figure 12, Figure 15). It has large osteodermal ellipsoid without median cut (Figure 22) which resemble with Malawisaurus [105] of Malawi, Africa (show paleobiogeographic link with Africa). While Gspsaurus pakistani (Figure 11) from Pakistan, South Asia and titanosaur (plate 77 of [103] ) (Figure 4 of [104] ) from Argentina, South America have large ellipsoidal plate but with median cut (show paleobiogeographic link with South America). Its further diagnosis and formal descriptions are shown in ( [54] , pages 1098-1105).

13) Sulaimanisaurus gingerichi [68] vide [88]

Its holotypic and referred specimens, type and referred localities, horizon and age along with year of informal and formal description and basinal distribution were mentioned in (Table 11). Its diagnosis and descriptions of caudals are also shown in ( [70] , pages 112-113). Its four caudals found positioned in anterior (known by well developed transverse process0, while other 3 belong to mid caudal series. Its caudal vertebrae are squarish with no ventral reduction like Isisaurus colberti [101] .

14) Khetranisaurus barkhani [68] vide [88]

Its holotypic and referred specimens, type and referred localities, horizon and age along with year of informal and formal description and basinal distribution were mentioned in (Table 11). Its diagnosis are shown in ( [88] , pages 296-298). Its descriptions are shown in ( [70] , page 113). Transverse width of its caudal vertebrae is broad ventrally than dorsally, which makes unique in Indo-Pakistani titanosaurs.

From Pakistan only 3 theropod species were reported so far and from India about a dozen theropod species were reported, while in contrast from Pakistan about a dozen species of titanosaurian sauropods are documented.

Vitakrisauridae [9] vide [88]

Represented by Vitakridrinda sulaimani, Vitakrisaurus saraiki and Shansaraiki insafi theropods.

1) Vitakridrinda sulaimani [68] vide [88]

It was based on holotypic materials (Figure 23) consisting of more than 10 teeth, a pair of femora and a pair of dorsal vertebrae from central Alam 19 locality. Its referred materials include anterior dorsal vertebra from Sangiali, two tall dorsal vertebrae, a single distal tail vertebra and meta tarsal from Top Kinwa, one anterior caudal and one middle caudal vertebrae from Mari Bohri locality, a single anterior dorsal vertebra from Sangiali and a metatarsal from south Kinwa. Its basic data are shown in Table 5 of [17] . Its description of holotypic and referred fossils are shown in ( [88] , pages 302-303) and described in ( [87] , pages 512-520). Its distinguishing characters are well described by ( [90] , pages 1066-1067).

2) Vitakrisaurus saraiki [9] vide [88]

Its formal description year, holotypic specimens (Figure 24), type locality, horizon and age and basinal distribution were mentioned in Table 5 of [17] . Its holotypic materials include caudal vertebrae, humerus, ulna, manus and a few other limb bones (Figure 24) from mid Bor locality [88] and referred materials include a few limb bones (Figure 24) from Pakistan [88] and an amphicoelous vertebra with small sized chevron (Figure 24) from India [87] [88] . Vitakrisaurus saraiki have elongated and tall caudal vertebrae while Vitakridrinda sulaimani have elongated and square shaped to cylindrical caudal vertebrae. Vitakrisaurus saraiki neural canal is dorsoventrally compressed, transversely oval shaped in anterior caudal and also in middle caudal vertebrae while Vitakridrinda sulaimani neural canal is dorsoventrally tall suboval shaped in anterior caudal vertebrae. Its comparison and detailed description of above bones can be found in [87] [88] .

3) Shansaraiki insafi [90]

Its holotypic specimens (Figure 25) and other basic data were mentioned in Table 5 of [17] . Its formal description of cranial and postcranial materials were described in ( [90] , pages 1067-1071). Some description was added by ( [17] , page 937) are as. Its dentary ramus (GSP-UM/MSM-5-3) has preserved 2 teeth and one alveolus. Its medial side has two large medial dental foramina (Figure 25). These foramina are alternated with teeth roots. Foramina are large and more than 1 cm in diameter. These foramina approach to roots of teeth and used for nerve and blood supply to dentary teeth, gums, muscles and tissues. Teeth are oval shaped and D-shaped asymmetrical (large size) to circular (medium sized). Large tooth have thick peripheral bone while small teeth show relatively thin peripheral bone while thickness vary in periphery. Further teeth cavity of small and large teeth is almost same size. The teeth outer surface is wrinkled i.e. teeth outer bone periphery show long pipe type or hair type fibrous texture. The contact of teeth peripheral bone with core cavity is uneven and rough ( [17] , page 937). Shansaraiki insafi characters and comparison is as below. Shansaraiki insafi dentary symphysis form V-shaped (Figure 25) which blunted as w-shaped anteriormost end, while Rahiolisaurus anterior jaw ramus shows curvature representing U-shaped anterior symphysis. The dentary ramus of Shansaraiki insafi does not bear lateral step, while Rajasaurus narmadensis represent lateral step on dentary ramus [130] . Dentary ramus is thick and deep and represents rough pitted structures and irregular lineations. Shansaraiki insafi has wide spaced between teeth on ramus while Indosuchus [93] have short, recurved and closely contacted teeth. The teeth of Shansaraiki and Indosuchus have different morphology on different positions. Shansaraiki insafi has oval and biconvex teeth (convexing on labial and also lingual sides) while Vitakridrinda has commonly D-shaped, oval and subcircular teeth. Its anteroposteriorly broad teeth matching with Indosuchus but differ on teeth shape. It has oval shaped teeth while Vitakridrinda has D-shaped, oval and subcircular teeth and Rahiolisaurus [131] has symmetrical cross sectional shape of teeth. Its teeth size and interdental spacing is almost same as Rahiolisaurus [131] . It has relatively rounded mesial keel and sharp distal keel on one tooth while Rahiolisaurus [131] has a faint mesial keel but rounded distal edge. It has symmetric and asymmetric both type of teeth, while Rahiolisaurus [131] has symmetrical oval teeth (Rajasaurus [131] has no preserved teeth for comparison). Its anteroposterior width of teeth is same as Vitakridrinda teeth [88] but relatively large than Rahiolisaurus teeth [131] . Its dorsal centrum is elongated cylindrical with circular shaped articular surfaces (Figure 25), while Vitakridrinda has tall and elongated dorsal centra (Figure 23), and Rajasaurus [132] has tall and short dorsal centrum. Its dorsal centrum is not spool-shaped, with its articular faces not deeper than broad while Rajasaurus [132] dorsal centrum is spool-shaped, with its articular faces deeper than broad. It has well developed amphicoelous concave articular surfaces (Figure 25) while the Rajasaurus [132] and Rahiolisaurus [131] have flat or gentle or faint amphicoelous nature.

Webbed foot of Marsupial (Mammalia) from Vitakri Formation of Pakistan

Systematic paleontology

Mammalia, Metatheria

Khansultan masoomrashidi new genus and new species (Figure 17)

Holotype: A partial webbed pes foot GSP/MSM-675-15 (Figure 17, row 4, p8, 9), housed in the museum of Geological Survey of Pakistan, Quetta.

Type locality, horizon and age: Holotype was found in Mari Bohri 15 (latitude 29˚41'57"N; longitude 69˚14'59"E) (Figure 4 of [88] ), Barkhan district, Balochistan Province, Pakistan. Host horizon is the Vitakri Formation (Figure 1) of Fort Munro Group. Age of Vitakri Formation is latest Maastrichtian (see above).

Etymology: Genus name Khansultan honors Former Prime Minister of Pakistan Imran Khan, great journalists Imran Khan and Waqar Malik Khan and great leader Sanam Javaid Khan, and sultan, Saraiki for king. Khansultan can be pronunciated Khan Sultan. Species name K. masoomrashidi is after the masoom, Saraiki language for innocent, rashidi, to honor Dr. Yasmin Rashid Former Provincial Minister of Health of Punjab. Species name K. masoomrashidi pronunciated as masoom rashidi. All these supported poor peoples of Sulaiman Range (host of fossil).

Diagnosis and comparison: The presence of syndactyly in hind foot, its size and digits interpreted to belongs to Metatheria, Mammalia (possibly ancestor of Kangaroo related Marsupial). A syndactylous and planatar webbed partial hind foot GSP/MSM-675-15 (Figure 17, row 4, p8, 9) is sub rectangle shaped. Its anterior side is 10cm and posterior side is 8cm and lateral and medial sides are 8cm and 6cm and dorsoventral maximum thickness is about 1.5 cm. Its anterior side is relatively transversely broad and while posterior side is transversely narrows. Its bones seem to be enveloped by skin forming webbed planatar pes. Its surface represents shallow elongated ridges alternated by elongated shallow depressions. The elongated ridges represent the digit and depression line represents the contact of two digits. First digit is relatively thin, second and third digits are relatively thick, while fourth digit is more thick. It is possible the fourth digit may have fourth and fifth narrower digits. The length of preserved first digit is slightly short than fourth digit. In general the lengths of all preserved digits are subequal. Bones are exposed on preserved posterior end. The exposed bone of 3rd digit is slightly larger than 2^nd digit. Both bones are broad transversely. This syndactylous hind foot shows rough iregular dendritic type rugose morphology on its skin surface. If this purely tentative interpretation is true, then Khansultan having larger size and syndactylous hind foot [133] , may appear as a marsupial.