Jump to content

Pab Formation

From Wikipedia, the free encyclopedia
Pab Formation
Stratigraphic range: Maastrichtian
~66 Ma
TypeGeological formation
UnderliesRanikot Group
OverliesMonajhal Group
Thickness150–250 m (490–820 ft)
Lithology
PrimarySandstone
OtherMudstone, shale
Location
RegionBalochistan
Country Pakistan

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

[edit]

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

[edit]
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

[edit]
Sauropods of the Pab Formation
Genus Species Location Stratigraphic position Material Notes Images
Induszalim[4] I. bala Skull and Postcrania (Rostrum previously referred to Vitakridrinda sulaimani) A mesoeucrocodylian crocodyliform
Pabwehshi[5] P. pakistanensis Skull elements A baurusuchine baurusuchid

Invalid taxa

[edit]

See also

[edit]

References

[edit]
  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.
  2. ^ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
  3. ^ a b 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.
  4. ^ Malkani, M.S. (2006). "First rostrum of carnivorous Vitakridrinda (Abelisaurid theropod dinosaur) found from the Latest Cretaceous dinosaur beds (Vitakri) Member of Pab Formation, Alam Kali Kakor Locality of Viakri area, Darkham District, Balochistan, Pakistan". Sindh University y Research Journal (Science Series). 38 (3): 7–26.
  5. ^ 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

[edit]