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

U. B. Mallikarjuna ¹, H. M. Nagaraja ¹

Affiliations
1 Department of Geology, Bangalore University, Bangalore - 560 056, IN

Abstract

Fifty-two ostracode taxa are recorded from the Ariyalur Group (Late Cretaceous), Cauvery Basin, Southern India. Of these, seven are new, thirty-nine already reported and six left under open nomenclature. The new species are Cytherelloidea jaini, Curfsina Sastryi, Limburgina gowdai, L. mannikerii, L. guhai, L. khoslai and Pontocyprella ariyalurensis. The paper gives systematic description of seven species and revised/synonymised list of ostracode species reported earlier.

Keywords

Palaeontology, Late Cretaceous, Ostracodes, Ariyalur Group, Cauvery Basin, Tamil Nadu.

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U. B. Mallikarjuna ¹, S. Sugumaran ¹, H. M. Nagaraja ¹

Affiliations
1 Department of Geology, Bangalore University, Bangalore-560056, IN

Abstract

This paper reports the finding of ophiuroid ossicIes in the Kallankurichchi Formation (Maastrichtian) of Ariyalur Group, Tamil Nadu. The material is rather ill preserved and represents indeterminate vertebrae, dorsal shields, possible genital bars and some questionable material of uncertain affinity. The palaeoecological implications of these ossicles on the Kallankurichchi Formation are discussed.

Keywords

Palaeontology, Ophiuroid Ossicles, Maastrichtian, Ariyalur Group, Tamil Nadu.

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