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

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Upper Cretaceous & Lower Tertiary Foraminiferal Genus Bolivinoides from the Cauvery Basin, South India and its Palaeobiogeographical Significance


Affiliations
1 Palaeontology Laboratory, Institute of Petroleum Exploration, Oil & Natural Gas Commission, Kaulagarh Road, Dehradun 248195 (U.P.), India
     

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Five species of Bolivinoides are reported for the first time from the Upper Cretaceous and Lower Tertiary subsurface sediments of the Cauvery Basin, South India. The Stratigraphic ranges of these species are compared with established planktonic foraminiferal zones. The morphological variation of the genus has been analysed. The palaeobiogeographical significance of this form is discussed. In the light of the present find of Bolivinoides, palaeoclimatic conditions of the Cretaceous shelf seas of the basin has been suggested.
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  • Upper Cretaceous & Lower Tertiary Foraminiferal Genus Bolivinoides from the Cauvery Basin, South India and its Palaeobiogeographical Significance

Abstract Views: 144  |  PDF Views: 2

Authors

A. Govindan
Palaeontology Laboratory, Institute of Petroleum Exploration, Oil & Natural Gas Commission, Kaulagarh Road, Dehradun 248195 (U.P.), India

Abstract


Five species of Bolivinoides are reported for the first time from the Upper Cretaceous and Lower Tertiary subsurface sediments of the Cauvery Basin, South India. The Stratigraphic ranges of these species are compared with established planktonic foraminiferal zones. The morphological variation of the genus has been analysed. The palaeobiogeographical significance of this form is discussed. In the light of the present find of Bolivinoides, palaeoclimatic conditions of the Cretaceous shelf seas of the basin has been suggested.