Gautam, R. and Rai, V. 1997. Branched microbiota from the bedded black chert of the Krol Formation (Neoproterozoic), Lesser Himalaya, India. Journal of Palaeosciences. 46, (1-2) (Dec. 1997), 32–40. DOI:https://doi.org/10.54991/jop.1997.1315.