Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Genus Worthoceras Adkins from Cretaceous Deposits of Tiruchchirapalli District, Tamil Nadu, India


Affiliations
1 Department of Geology and Palaeontology, M.A.C.S. Research Institute, Pune 411004, India
     

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Paper reports the presence of the genus Worthoceras Adkins from the Utatur Group, Cretaceous deposits of Tiruchchirapalli, Tamil Nadu. The genus is represented by three species, viz., Worthoceras vermiculian, W. gibbosum and Worthoceras sp. aff. W. rochatianum. History and phylogenetic position of the genus is discussed in detail. Authors following Henderson (1973), place the Wortoceros species under the family Scaphitidae and consider the genus Otoscaphites Wright as an evolutionary form in the lineage Eoscaphites-Scophites.
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  • Genus Worthoceras Adkins from Cretaceous Deposits of Tiruchchirapalli District, Tamil Nadu, India

Abstract Views: 168  |  PDF Views: 2

Authors

A. V. Vartak
Department of Geology and Palaeontology, M.A.C.S. Research Institute, Pune 411004, India
M. A. Ghare
Department of Geology and Palaeontology, M.A.C.S. Research Institute, Pune 411004, India

Abstract


Paper reports the presence of the genus Worthoceras Adkins from the Utatur Group, Cretaceous deposits of Tiruchchirapalli, Tamil Nadu. The genus is represented by three species, viz., Worthoceras vermiculian, W. gibbosum and Worthoceras sp. aff. W. rochatianum. History and phylogenetic position of the genus is discussed in detail. Authors following Henderson (1973), place the Wortoceros species under the family Scaphitidae and consider the genus Otoscaphites Wright as an evolutionary form in the lineage Eoscaphites-Scophites.