MAHESHWARI, H.; SINGH, V.; BAJPAI, U. Venation pattern in the sphenophyll Trizygia speciosa Royle from the Raniganj Formation. Journal of Palaeosciences, [S. l.], v. 37, n. (1-3), p. 26–35, 1988. DOI: 10.54991/jop.1988.1596. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/1596. Acesso em: 3 mar. 2024.