Parent taxon: Polypodiopsida according to V. S. Perez Loinaze et al. 2023
See also I 2016, Jud 2011, Mabberley 2000 and McIver and Basinger 1993
Sister taxa: Acrocarpus, Biretisporites, Cladophlebis, Dicksoniaceae, Equisetidae, Gleicheniaceae, Marattiidae, Marsileaceae, Osmundaceae, Polypodiaceae, Polypodiidae, Protopteris, Pseudosalvinia, Pterygopteris, Punctatosporites, Schizopteris, Tempskyaceae, Verrucosisporites
Subtaxa: Blechnoideae Leptolepidites Midlandia Peromonolites Stenochlaenoideae Woodwardioideae
Distribution:
• Quaternary of Argentina (2 collections), Australia (25), India (6)
• Miocene to Pliocene of Japan (1), South Atlantic (1)
• Miocene of Argentina (2), Australia (1), China (1), Venezuela (1)
• Oligocene to Miocene of Argentina (5), Australia (3)
• Oligocene of Argentina (2), Australia (1)
• Eocene of Antarctica (1), Argentina (4), Canada (1: British Columbia), China (1), Myanmar (18), United States (17: North Dakota, Washington, Wyoming)
• Clarkforkian of United States (8: Wyoming)
• Tertiary of Venezuela (1)
• Paleocene of Antarctica (1), Argentina (4), Australia (6), Canada (6: Alberta, Saskatchewan), China (1), Colombia (4), United States (16: Colorado, Montana, North Dakota, Wyoming)
• Cretaceous to Paleogene of Antarctica (1), New Zealand (3), United States (1: Colorado)
• Cretaceous of Antarctica (9), Argentina (19), Australia (3), Brazil (61), Canada (4: Alberta), China (2), Colombia (11), Egypt (18), France (1), Israel (1), Libya (1), Morocco (1), Peru (1), Portugal (2), the Russian Federation (1), South Sudan (1), Sudan (23), the United Kingdom (1), United States (27: Montana, New Mexico, North Dakota, South Carolina, Wyoming)
• Jurassic to Cretaceous of Egypt (1), India (1), the Russian Federation (1)
• Jurassic of Argentina (1), France (2), Morocco (1), Serbia and Montenegro (1)
• Triassic of the Netherlands (1), Norway (9)
Total: 350 collections including 372 occurrences