• Implications of marine Gastropoda Baylea DeKoninck, 1883 from the Permian Barren Measures Formation, Lower Gondwana, West Bokaro Basin, eastern India

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    • Keywords


      Lower Gondwana; Barren Measures Formation; Permian fluvio-marine; benthic Gastropoda; Baylea sp.; West Bokaro Basin.

    • Abstract


      The consideration of events of marine invasion within the continental Gondwanaland in the Indian subcontinent during the Permian is often doubted due to lack of appropriate fossil record. The Permian Barren Measures Formation within the Lower Gondwana Supergroup in eastern India is considered as deposited in a fluvio-marine estuarine setting, interpreted mostly based on sedimentological signatures in terms of marine tide and wave imprints within the so-called continental fluvial deposits. Fossilized shells of marine Gastropoda genus Baylea DeKoninck, 1883, are reported here from the siltstone beds of the prodeltaic sediments of the Barren Measures Formation, West Bokaro Basin. The in-situ preservation of the marine invertebrate fossils Baylea sp. provides definite proof of marine link of the West Bokaro Basin during the Barren Measures sedimentation. The present fossil record, when combined with sedimentological attributes, clearly signifies a marine inland encroachment event during the Permian time.

    • Author Affiliations



      1. Department of Earth Sciences, Indian Institute of Technology, Roorkee 247 667, India.
      2. NRD, Jharia Division, Tata Steel Limited, Jharkhand 825 314, India.
      3. Department of Geology, Durgapur Government College, Durgapur 713 214, West Bengal, India.
    • Dates

  • Journal of Earth System Science | News

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      Posted on July 25, 2019

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