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

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Coralline Algae from the Prang Formation (Middle-Late Eocene) of the Lumshnong Area, Jaintia Hills, Meghalaya


Affiliations
1 Botany of Department, University of Lucknow, Lucknow - 226 007, India
2 Department of Geology, University of Lucknow, Lucknow - 226 007, India
3 Department of Geology, Mizoram University, Aizawl – 796 009, India
     

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The present paper records nine species of coralline algae from the Prang Formation of middle-late Eocene age from the Jaintia Hills, Meghalaya. The algae are associated with the larger foraminifera including Nummulites, Alveolina and Discocyclina throughout the succession. The temporal distribution of algal species indicates that seven species are known from the Eocene. Of the remaining two, one ranges from the Palaeocene to Eocene and the other is Palaeocene in age. The coralline algae and larger foraminifers are differentiated into two associations, the lower one indicating inner-ramp environment of high energy and the upper one showing deposition in relatively calm waters of deeper ramp environment.

Keywords

Coralline Algae, Larger Foraminifera, Middle-Late Eocene, Jaintia Hills, Meghalaya.
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  • Coralline Algae from the Prang Formation (Middle-Late Eocene) of the Lumshnong Area, Jaintia Hills, Meghalaya

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Authors

P. K. Misra
Botany of Department, University of Lucknow, Lucknow - 226 007, India
A. K. Jauhri
Department of Geology, University of Lucknow, Lucknow - 226 007, India
R. P. Tiwari
Department of Geology, Mizoram University, Aizawl – 796 009, India
S. Kishore
Botany of Department, University of Lucknow, Lucknow - 226 007, India
Ajay Pratap Singh
Department of Geology, Mizoram University, Aizawl – 796 009, India
S. K. Singh
Botany of Department, University of Lucknow, Lucknow - 226 007, India

Abstract


The present paper records nine species of coralline algae from the Prang Formation of middle-late Eocene age from the Jaintia Hills, Meghalaya. The algae are associated with the larger foraminifera including Nummulites, Alveolina and Discocyclina throughout the succession. The temporal distribution of algal species indicates that seven species are known from the Eocene. Of the remaining two, one ranges from the Palaeocene to Eocene and the other is Palaeocene in age. The coralline algae and larger foraminifers are differentiated into two associations, the lower one indicating inner-ramp environment of high energy and the upper one showing deposition in relatively calm waters of deeper ramp environment.

Keywords


Coralline Algae, Larger Foraminifera, Middle-Late Eocene, Jaintia Hills, Meghalaya.

References