ZIMMERMANN, W. On the Palaeozoic pteridophylls. Journal of Palaeosciences, [S. l.], v. 14, n. (1-3), p. 79–84, 1965. DOI: 10.54991/jop.1965.718. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/718. Acesso em: 24 nov. 2024.