KNIGHT, John A; SARDINA, Luis J. An emended and amplified description of Pecopteris apicalis Knight, a fern morphospecies of mid-Stephanian age from NW Spain. Spanish Journal of Palaeontology, [S. l.], v. 31, n. 1, p. 95–114, 2020. DOI: 10.7203/sjp.31.1.17141. Disponível em: https://pasquin.uv.es/index.php/sjpalaeontology/article/view/17141. Acesso em: 13 nov. 2024.