Pal, P.K. “Morphotaxonomy of Heterophyllous Lycopsid Shoot from the Rajmahal Hills, India”. Journal of Palaeosciences 32, no. (1-3) (December 31, 1984): 321–325. Accessed July 4, 2024. https://jpsonline.co.in/index.php/jop/article/view/1386.