Late Precambrian microfossils from Deoban Limestone Formation, Lesser Himalaya, India

Manoj Shukla; V.C. Tewari; V.K. Yadav

doi:10.54991/jop.1986.1549

Authors

Manoj Shukla Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India
V.C. Tewari Wadia Institute of Himalayan Geology, General Mahadeo Singh Road, Dehradun, India
V.K. Yadav Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India

DOI:

https://doi.org/10.54991/jop.1986.1549

Keywords:

Palaeoecology, Cyanobacteria, Spheroidal unicells, Eubacteria, Lesser Himalaya, Precambrian (India)

Abstract

A well-preserved microbiota consisting of filamentous Cyanobacteria, viz., Oscillatoriopsis, Cyanonema, Siphonophycus, Eomycetopsis, Gunflintia and Animikiea; spheroidal unicells, viz., Glenobotrydion, Globophycus, Sphaerophycus and Myxococcoides; Eubacteria, viz., Archaeotrichion, Biocatenoides; and acritarch (?plankton) Kildinosphaera, is described from petrographic thin sections of cherts from the Deoban Formation, Garhwal Lesser Himalaya. The assemblage has been compared with other authentic Proterozoic records. The palaeomicrobial community is interpreted to have inhabited a protected shallow intertidal environment.