Parent taxon: Pteropsida according to L. J. Hickey 1977
See also MacGinitie 1941
Sister taxa: Altitriletes, Cymoglossa, Dichotospermum, Diplasterotheca, Jidopteris, Parapecopteris, Partschia, Phthinophyllum, Pseudopecopteris, Pseudopecopteris, Rhodea, Verreticulisporis
Subtaxa: Anomopteris Cyathocarpus Eupecopteris Lageniopteris Langcamia Lobatopteris Moakheopteris Mokrawia Neuropteridium Palaeogleichenia Palaeoweichselia Palibiniopteris Pecopteridium Pecopteris Polymorphopteris Prepecopteris Sturiella Thainguyenopteris Thinnfeldiella Ussuriopteris
Distribution:
• Miocene of Switzerland (1 collection)
• Neogene of China (1)
• Oligocene of Argentina (1)
• Cretaceous of Antarctica (1), Belgium (2), Spain (3), United States (4: Wyoming)
• Jurassic to Cretaceous of India (1)
• Jurassic of China (1), India (8), Mexico (1), Poland (1), Portugal (1), the United Kingdom (1)
• Triassic to Jurassic of Sweden (1)
• Triassic of Australia (1), China (11), France (4), Germany (18), Hungary (1), India (1), Iran (1), Italy (10), Kyrgyzstan (1), Mexico (11), the Russian Federation (9), Serbia and Montenegro (1), Switzerland (1), Tajikistan (2), Ukraine (1), United States (2: North Carolina, Virginia)
• Wolfcamp of Mexico (1)
• Permian of Argentina (4), Bolivia (1), Brazil (11), Canada (1: Prince Edward Island), China (154), the Czech Republic (3), France (9), Germany (17), Greenland (1), Hungary (1), India (8), Indonesia (1), Iraq (1), Italy (2), Japan (1), Jordan (1), Madagascar (2), Malaysia (4), Mexico (1), Mongolia (9), Morocco (3), North Korea (8), Papua New Guinea (1), Peru (1), Portugal (1), the Russian Federation (86), Saudi Arabia (5), South Africa (2), South Korea (4), Spain (2), Thailand (2), Turkey (2), the United Kingdom (2), United States (17: Arizona, Colorado, Kansas, Oklahoma, Texas), Venezuela (1), Zimbabwe (1)
• Virgilian of United States (2: New Mexico)
• Desmoinesian of United States (1: Indiana)
• Pennsylvanian of Portugal (2), United States (18: Georgia, Illinois, Kansas, Kentucky, Michigan, Pennsylvania)
• Atokan of United States (2: Indiana)
• Westphalian of Canada (2: Nova Scotia), United States (2: Alabama, Illinois)
• Carboniferous to Permian of Morocco (1), Spain (2)
• Carboniferous of Brazil (1), Canada (12: New Brunswick, Nova Scotia, Prince Edward Island), Germany (3), India (1), Portugal (1), Spain (10), Turkey (2), the United Kingdom (2), United States (55: Alabama, Alaska, Arizona, Georgia, Illinois, Indiana, Kansas, Kentucky, Missouri, Ohio, Oklahoma, Pennsylvania, Texas, Utah, West Virginia)
• Mississippian of Canada (2: New Brunswick, Nova Scotia), France (1), United States (7: Illinois, Missouri, Pennsylvania, West Virginia)
Total: 603 collections including 1484 occurrences