Significance of calcareous algae across the Cretaceous-Tertiary sequence of Cauvery Basin in Tiruchirapalli District, Tamil Nadu

A.K. Ghosh; B.N. Jana; P.K. Maithy

doi:10.54991/jop.1997.1334

Authors

A.K. Ghosh Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India
B.N. Jana Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India
P.K. Maithy Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India

DOI:

https://doi.org/10.54991/jop.1997.1334

Keywords:

Calcareous algae, Distribution pattern, Cretaceous -Tertiary sequence, India

Abstract

Calcareous skeletal algae belonging to Cyanophyta (Cyanobacteria), Chlorophyta and Rhodophyta are known from Uttatur, Trichinopoly, Ariyalur and Niniyur groups of Tiruchirapalli District, Tamil Nadu. An attempt has been made to analyse the algal assemblages across the Cretaceous-Tertiary sequence in Tiruchirapalli District, Tamil Nadu. The distribution pattern of algal taxa indicates that there is a gradual change in algal flora from Cretaceous to Tertiary.

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