Mehrotra, N. and Sarjeant, W.A. 1998. Late Cretaceous to Early Tertiary dinoflagellate cysts from the Krishna-Godavari basin-cyst morphology and review of biostratigraphical dating. Journal of Palaeosciences. 47, (Dec. 1998), 50–59. DOI:https://doi.org/10.54991/jop.1998.1273.