†family Alethopteridaceae Corsin 1960
Cycadopsida - Trigonocarpales - Alethopteridaceae
Alternative spelling: Alethopteridae
Parent taxon: Medullosales according to Z. Šimůnek 2017
See also Dilcher et al. 2005
Sister taxa: Sarcospermum, Trigonocarpaceae, Trigonocarpolithus, Angiospermophyton
Subtaxa: Compsopteris Crepidopteris Cyphopteris Pseudoalethopteris Pteridopsis Validopteris
Distribution:
• Triassic of Hungary (1 collection)
• Permian of Canada (1: Nunavut), China (55), Mexico (1), Mongolia (2), the Russian Federation (21), Saudi Arabia (1), Spain (1), Turkey (1)
Total: 84 collections including 114 occurrences