Open Access Open Access  Restricted Access Subscription Access

Fossil Remains of Proterosuchian from The Panchet Formation, Damodar Valley of India


Affiliations
1 26/A Suraksha Nagar, ICD Road, Ahirwan, Kanpur 208 007, India
 

Fossils of proterosuchians are known from the Early Triassic beds of many different countries like China, Russia, South Africa and India. Remains of the earliest described proterosuchian Ankistrodon indicus, are known from the Lower Triassic beds of the Panchet Formation of India. Later, the genus was renamed as Chasmatosaurus indicus. Chasmatosaurus is now considered as a junior synonym of Proterosuchus. The Early Triassic archosauromorph remains from India are based on rare and poorly preserved proterosuchian jawbones, few vertebrae and an ilium. This article reports the discovery of additional Proterosuchus fossil material, humerus and rediscovery of the cervical and caudal vertebrae from the Lower Triassic beds of the Panchet Formation, from the locality near Asansol district, West Bengal, India. Proterosuchus humerus has not been described before from India; hence this additional material along with axial materials that are a cervical vertebra and a caudal vertebra will add further information about this Early Triassic proterosuchidae of India.

Keywords

Cervical and Caudal Vertebrae, Fossil Remains, Humerus, Proterosuchian, Proterosuchus.
User
Notifications
Font Size

  • Chakraborty, C., Mandal, N. and Ghosh, S. K., Kinematics of the Gondwana basins of peninsular India. Tectonophysics, 2003, 377, 299–324.
  • Valdiya, K. S., Gondwana tectonics, inland sedimentation and life. In The Making of India. Society of Earth Scientists Series, Springer, Cham, 2016; https://doi.org/10.1007/978-3-319-250298_13.
  • Huxley, T. H., On a collection of vertebrate fossils from the Panchet rocks, Raniganj, Bengal. Palaeontol. Indica Ser., 1865, 3, 1–24.
  • Satsangi, P. P., A note on Chasmatosaurus from the Panchet Series of Raniganj Coal field, India. Curr. Sci., 1964, 33, 651– 652.
  • Bandyopadhyay, S., Gondwana vertebrate faunas of India. Proc Indian Natl. Sci. Acad. Sect A, 1999, 65, 285–313.
  • Robinson, P. L., Some new vertebrate fossils from the Panchet Series of West Bengal. Nature, 1958, 182, 1722–1723.
  • Tripathi, C. and Satsangi, P. P., Lystrosaurus fauna from the Panchet Series of Raniganj Coalfield. Palaeontol. Indica (N.S.), 1963, 37, 1–53.
  • Ezcurra, Martín D., The phylogenetic relationships of basal archosauromorphs, with an emphasis on the systematics of proterosuchian archosauriforms. Peer J., 2016, 4, e1778; doi:10.7717/peerj.1778.
  • Huene F. von, Die fossilen Reptilien des südamerikanischen Gondwanaland es. Ergebnisse der Sauriergrabungen in Südbrasilien, 1928/1929. München: C.H. Becksche Verlagsbuchhandlung, München, 1942.
  • Romer, A. S., The Chañares (Argentina) Triassic reptile fauna. XVI. Thecodont classification. Breviora, 1972, 395, 1–24.
  • Nesbitt, S. J. et al., In Anatomy, Phylogeny and Palaeobiology of early Archosaurs and their Kin (eds Nesbitt, S. J., Desojo, J. B. and Irmis, R. B.), Geological Society of London, Special Publication, 2013, vol. 379, pp. 241–274.
  • Osborn, H. F., The reptilian subclasses Diapsida and Synapsida and the early history of the Diaptosauria. Mem. Am. Mus. Nat. Hist., 1903, 1, 449–519.
  • Gauthier, J. A., A cladistic analysis of the higher categories of the Diapsida. Ph.D. thesis, University of California, Berkeley, USA, 1984, p. 564.
  • Huene, F. von, Die grossen Stämme der Tetrapoden in den geologischen Zeiten. Biol. Zentralblatt., 1946, 65, 268–275.
  • Gauthier, J. A., Kluge, A. G. and Rowe, T., Amniote phylogeny and the importance of fossils. Cladistics, 1988, 4, 105–209.
  • Huene, F. von, Die Dinosaurier der europäischen Triasformation mit Berücksichtigung der aussereuropäischen Vorkommnisse. Geol. Paläontol. Abhandl. Suppl., 1908, 1, 1–419.
  • Broom, R., On a new reptile (Proterosuchus fergusi) from the Karroo beds of Tarkastad, South Africa. Ann. South Afr. Mus., 1903, 4, 159–164.
  • Ghosh, S. C., Nandi, A., Ahmed, G. and Roy, D. K., Study of Permo-Triassic boundary of Gondwana sequence of Raniganj Basin, India. Proc. Vol. Gondwana Nine, 1994, 2, 179–194.
  • Pant, P. R. and Murty, B. V. S., Geological exploration of coal: the Indian scenario. Mem. Geol. Soc. India, 2004, 59, 310.
  • Young, C.-C., Additional remains of Chasmatosaurus yuani Young from Sinkiang, China. Vertebr. PalAsiatica, 1963, 7, 215– 222.
  • Hughes, B., The earliest archosaurian reptiles. South Afr. J. Sci., 1963, 59, 221–241.
  • Young, C.-C., On a new Chasmatosaurus from Sinkiang. Bull. Geol. Soc. China, 1936, 15, 291–311; doi:10.1111/j.1755-6724.1936.mp15003003.x.

Abstract Views: 258

PDF Views: 120




  • Fossil Remains of Proterosuchian from The Panchet Formation, Damodar Valley of India

Abstract Views: 258  |  PDF Views: 120

Authors

Saurabh Pal
26/A Suraksha Nagar, ICD Road, Ahirwan, Kanpur 208 007, India

Abstract


Fossils of proterosuchians are known from the Early Triassic beds of many different countries like China, Russia, South Africa and India. Remains of the earliest described proterosuchian Ankistrodon indicus, are known from the Lower Triassic beds of the Panchet Formation of India. Later, the genus was renamed as Chasmatosaurus indicus. Chasmatosaurus is now considered as a junior synonym of Proterosuchus. The Early Triassic archosauromorph remains from India are based on rare and poorly preserved proterosuchian jawbones, few vertebrae and an ilium. This article reports the discovery of additional Proterosuchus fossil material, humerus and rediscovery of the cervical and caudal vertebrae from the Lower Triassic beds of the Panchet Formation, from the locality near Asansol district, West Bengal, India. Proterosuchus humerus has not been described before from India; hence this additional material along with axial materials that are a cervical vertebra and a caudal vertebra will add further information about this Early Triassic proterosuchidae of India.

Keywords


Cervical and Caudal Vertebrae, Fossil Remains, Humerus, Proterosuchian, Proterosuchus.

References





DOI: https://doi.org/10.18520/cs%2Fv120%2Fi11%2F1749-1752