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Palynology; 2006; v. 30;1; p. 133-149; DOI: 10.2113/gspalynol.30.1.133
© 2006 American Association of Stratigraphic Palynologists
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PALYNOSTRATIGRAPHY OF THE DUBRAJPUR FORMATION (EARLY TRIASSIC TO EARLY CRETACEOUS) OF THE RAJMAHAL BASIN, INDIA

ARCHANA TRIPATHI

Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow 226 007, India, e-mail: atripathi{at}bsip.res.in

ATANU RAY

Geological Survey of India, Bhu-Bijnan Bhawan, DK-6, Salt Lake City, Kolkata 700 091, India

A comprehensive review of the lithology, megafloras and palynology of the Dubrajpur Formation of the Rajmahal Basin, eastern India indicates that this important unit comprises strata of Early and Late Triassic, late Early to early Mid Jurassic and latest Jurassic to Early Cretaceous age. The age range of the Dubrajpur Formation is concluded to be Early Triassic (Induan) to Early Cretaceous (Berriasian–Hauterivian) based on palynological evidence. It is hence a profoundly diachronous succession.

Key Words: palynostratigraphy • spores • pollen • Mesozoic • eastern India






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