ZODROW, Erwin L. Note on different kinds of attachments in trigonocarpalean (Medullosales) ovules from the Pennsylvanian Sydney Coalfield, Canada. Atlantic Geoscience, [S. l.], v. 40, n. 2/3, 2004. DOI: 10.4138/1039. Disponível em: https://journals.lib.unb.ca/index.php/ag/article/view/1039. Acesso em: 28 mar. 2024.