RAMANUJAM, C.; REDDY, P.; RAMAKRISHNA, H. Surmaspora Singh & Rao from the Neogene sediments of southern India: its stratigraphic and botanical significance. Journal of Palaeosciences, [S. l.], v. 46, n. 3, p. 47–50, 1997. DOI: 10.54991/jop.1997.1347. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/1347. Acesso em: 18 apr. 2024.