DABER, R. Chacassopteris-A fossil intermediate form. Journal of Palaeosciences, [S. l.], v. 21, n. (1-3), p. 52–58, 1972. DOI: 10.54991/jop.1972.1469. Disponível em: https://www.jpsonline.co.in/index.php/jop/article/view/1469. Acesso em: 19 may. 2024.