DELEVORYAS, T. Investigations of North American cycadeoids: Microsporangiate structures and phylogenetic implications. Journal of Palaeosciences, [S. l.], v. 14, n. (1-3), p. 89–93, 1965. DOI: 10.54991/jop.1965.719. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/719. Acesso em: 13 may. 2024.