NEMEJC, F. The taxonomic significance of the term Psilopsida and the evolutionary trends of this plant phylum. Journal of Palaeosciences, [S. l.], v. 9, n. (1-2), p. 17–20, 1960. DOI: 10.54991/jop.1960.592. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/592. Acesso em: 16 may. 2024.