Trivedi, B. and Verma, C. 1969. A petrified palm stem, Palmoxylon superbum, sp. nov. from Keria, Deccan Intertrappean Series, in Chhindwara district, M.P. Journal of Palaeosciences. 18, 1-3 (Dec. 1969), 270–279. DOI:https://doi.org/10.54991/jop.1969.845.