Palynostratigraphy of coal deposits in Jabalpur stage, Upper Gondwana, India

D.C. Bharadwaj; Pramod Kumar; H.P. Singh

doi:10.54991/jop.1970.871

Authors

D.C. Bharadwaj Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India
Pramod Kumar Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India
H.P. Singh Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India

DOI:

https://doi.org/10.54991/jop.1970.871

Abstract

The quantitative and qualitative analyses of the dispersed miospores in the coal and coaly shales of the Jabalpur Stage, Jabalpur Series, Madhya Pradesh, India have been given. The miofloral assemblage consists of 58 spore genera and 103 species. It is characterized by the prominence of Araucariacites associated with the common occurrence of Callialasporites and Cycadopites. The cryptogamic components are poor in occurrence.

A comparison of the mioflora with the Indian and extra Indian Upper Gondwana miofloras reveals that the Jabalpur Stage mioflora on one hand, closely resembles with the Rajmahal Hills mioflora (Basko and Sakrigalighat) but for the higher quantities of the cryptogamic spores and lesser frequency of Callialasporites, Cycadopites and Classopollis, and on the other hand it also resembles the Microflora Ila of Upper Jurassic age from W. Australia (Balme, 1957), the Upper Jurassic mioflora from Upper Katrol Shales of Kutch and the mioflora from Vemavaram shales. In view of the miofloristic similarity of the mioflora from Jabalpur Stage with those from palaeontologically dated Upper Jurassic strata in India as well as Australia, the former are conclusively dated as Upper Jurassic.

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