CHANDRA, S.; KEQIN, S. Distribution, evolution and extinction of global early Carboniferous flora. Journal of Palaeosciences, [S. l.], v. 43, n. 1-3, p. 88–97, 1994. DOI: 10.54991/jop.1994.1179. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/1179. Acesso em: 3 may. 2024.