Pab Formation

Pab Formation
Pab Formation
Stratigraphic range: Maastrichtian ; ~66 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Underlies	Ranikot Group
Overlies	Monajhal Group
Thickness	150–250 m (490–820 ft)
Lithology
Primary	Sandstone
Other	Mudstone, shale
Location
Region	Balochistan
Country	Pakistan

Last updated September 01, 2025

The Pab Formation is a Late Cretaceous geologic formation in Balochistan, in western Pakistan. It is dominated by sandstone, with minor mudstone and shale components.^[1] Dinosaur remains are among the fossils that have been recovered from the formation.^[2]

Fossil content

Among the following fossils were reported from the formation:

Color key

Taxon	Reclassified taxon	Taxon falsely reported as present	Dubious taxon or junior synonym	Ichnotaxon	Ootaxon	Morphotaxon

Notes
Uncertain or tentative taxa are in small text; ~~crossed out~~ taxa are discredited.

Dinosaurs

Sauropods of the Pab Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Isisaurus ^[3]	I. colberti			Braincase, possible Ulna	A lithostrotian titanosaur
Jainosaurus ?^[3]	J. septentrionalis			Humerus	A colossosaurian titanosaur

Crocodylomorphs

Crocodylomorphs of the Pab Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Pabwehshi ^[4]	P. pakistanensis			Skull elements	A baurusuchine baurusuchid

References

↑ Umar, Muhammad; Friis, Henrik; Khan, Abdul Salam; Kelling, Gilbert; Kassi, Akhtar Muhammad; Sabir, Muhammad Amjad; Farooq, Muhammad (2013-11-07). "Sediment Composition and Provenance of the Pab Formation, Kirthar Fold Belt, Pakistan: Signatures of Hot Spot Volcanism, Source Area Weathering, and Paleogeography on the Western Passive Margin of the Indian Plate During the Late Cretaceous". Arabian Journal for Science and Engineering. 39 (1): 311–324. doi:10.1007/s13369-013-0850-4. ISSN 1319-8025.
↑ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
1 2 Wilson, Jeffrey A.; Barrett, Paul M.; Carrano, Matthew T. (September 2011). "An associated partial skeleton of Jainosaurus cf. septentrionalis (Dinosauria: Sauropoda) from the Late Cretaceous of Chhota Simla, Central India". Palaeontology. 54 (5): 981–998. Bibcode:2011Palgy..54..981W. doi:10.1111/j.1475-4983.2011.01087.x. hdl: 2027.42/86940 .
↑ Wilson, Jeffrey A.; Malkani, M. Sadiq; Gingerich, Philip D. (2001). "New crocodyliform (Reptilia, Mesoeucrocodylia) from the Upper Cretaceous Pab Formation of Vitakri, Balochistan (Pakistan)". Contributions from the Museum of Paleontology, University of Michigan. 30 (12): 321–336.

Bibliography

Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2 , retrieved 2019-02-21{{citation}}: CS1 maint: publisher location (link)

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[1] Umar, Muhammad; Friis, Henrik; Khan, Abdul Salam; Kelling, Gilbert; Kassi, Akhtar Muhammad; Sabir, Muhammad Amjad; Farooq, Muhammad (2013-11-07). "Sediment Composition and Provenance of the Pab Formation, Kirthar Fold Belt, Pakistan: Signatures of Hot Spot Volcanism, Source Area Weathering, and Paleogeography on the Western Passive Margin of the Indian Plate During the Late Cretaceous". Arabian Journal for Science and Engineering. 39 (1): 311–324. doi:10.1007/s13369-013-0850-4. ISSN 1319-8025.

[dinosaurdistribution-2] Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.

[:1-3] 1 2 Wilson, Jeffrey A.; Barrett, Paul M.; Carrano, Matthew T. (September 2011). "An associated partial skeleton of Jainosaurus cf. septentrionalis (Dinosauria: Sauropoda) from the Late Cretaceous of Chhota Simla, Central India". Palaeontology. 54 (5): 981–998. Bibcode:2011Palgy..54..981W. doi:10.1111/j.1475-4983.2011.01087.x. hdl: 2027.42/86940 .

[JAWetal01-4] Wilson, Jeffrey A.; Malkani, M. Sadiq; Gingerich, Philip D. (2001). "New crocodyliform (Reptilia, Mesoeucrocodylia) from the Upper Cretaceous Pab Formation of Vitakri, Balochistan (Pakistan)". Contributions from the Museum of Paleontology, University of Michigan. 30 (12): 321–336.

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