WEBER, Reinhard. Review of Macropterygiwn Schimper ("Cycadophyta", presumed Bennettitales) and a new species from the Upper Triassic of Sonora, northwestern Mexico. Revista Mexicana de Ciencias Geológicas, [S. l.], v. 13, n. 2, p. 201–220, 2019. Disponível em: https://rmcg.unam.mx/index.php/rmcg/article/view/1161. Acesso em: 20 apr. 2025.