LAVEINE, Jean-Pierre; OUDOIRE, Thierry. Symmetrical bifurcation of the Alethopteris urophylla frond. Spanish Journal of Palaeontology, [S. l.], v. 24, n. 2, p. 121–131, 2021. DOI: 10.7203/sjp.24.2.20351. Disponível em: https://pasquin.uv.es/index.php/sjpalaeontology/article/view/20351. Acesso em: 20 sep. 2024.