Genus Paratoralia (Foraminifera) from the Niniyur Formation; South India; Cauvery Basin

N. Malarkodi

Abstract: This paper deals with an occurrence of the genus Paratorotalia (foraminifera) recorded in the Adanakurchchi limestone beds of Niniyur Formation of the south Indian; Cauvery Basin. The genus is present abundantly in the limestone beds from Adanakurhchchi area. The fossil has been described from SEM microphotograph and from a comparison with other known genera like Pararotalia tuberculifera; the present form is shown to be a new member of the genus Pararotalia. This new form has been named Pararotalia niniyurensis n. sp. ; The occurrence of Pararotalia in association with Thalmannita in calcareous limestone in Niniyur Formation indicates Palaeocene age to the Niniyur Formation.

Keywords: Pararotalia, Foraminifera, Adanakurchchi, Niniyur, Palaeocene, Cauvery Basin