Bose, M.N., and Sukh Dev. 1958. “Studies on the Fossil Flora of the Jabalpur Series from the South Rewa Gondwana Basin - 1. Cycadopteris, Nipaniophyllum and Ginkgoites”. Journal of Palaeosciences 7 ((1-2):143-54. https://doi.org/10.54991/jop.1958.580.