Prasad, Bijai, S.N. Uniyal, and Ramson Asher. 2005. “Organic-Walled Microfossils from the Proterozoic Vindhyan Supergroup of Son Valley, Madhya Pradesh, India”. Journal of Palaeosciences 54 ((1-3):13-60. https://doi.org/10.54991/jop.2005.68.