Venkatachala, B., Shukla, M., Bansal, R. and Acharyya, S. (1989) “Upper Proterozoic microfossils from the Infra Krol sediments, Nainital Synform, Kumaon Himalaya, India”, Journal of Palaeosciences, 38, pp. 29–38. doi: 10.54991/jop.1989.1635.