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Late Neoproterozoic (Ediacaran)-Early Paleozoic (Cambrian) acritarchs from the Marwar Supergroup,Bikaner-Nagaur Basin,Rajasthan
Authors:Bijai Prasad  Ramson Asher  Bihuti Borgohai
Institution:1.KDM Institute of Petroleum Exploration,Oil and Natural Gas Corporation Limited,Dehradun,India;2.Geology Division,Oil India Limited, Jodhpur Project,Jodhpur,India
Abstract:Characteristic latest Neoproterozoic and Early Paleozoic acritarchs and associated organic-walled microfossils are recorded from the sediments of Marwar Supergroup encountered in BGW-A well (Bikaner-Nagaur Basin) from 1123–481 m depth. Six distinct acritarch assemblages, broadly comparable with globally known Ediacaran (Vendian) and Cambrian assemblages are recognised. The recovered microfossils provide precise age for different units of the Marwar Supergroup whose ages, till now, were poorly understood due to absence or paucity of invertebrate and other mega and microfossils.
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