Full reference: B. C. Dumortier. 1829. Analyse des Familles des Plantes, avec l’indication des principaux genres qui s’y rattachent.
Parent taxon: Ginkgoopsida according to S. V. Meyen 1984
See also Christenhusz et al. 2011
Sister taxa: Asterophyllum, Calamopityales, Callistophytales, Caytoniales, Czekanowskiales, Dactylophyllum, Ginkgoales, Karkeniales, Leptostrobales, Linguifolium, Pentoxylales, Umaltolepididae
Subtaxa: Amphiephedra Ephedraceae Ephedripites Equisetosporites Regalipollenites
Ecology: "photoautotroph"
Distribution:
• Quaternary of Argentina (1 collection), India (15), Italy (2), North Atlantic (44), United States (2: Utah, Washington)
• Pliocene of North Atlantic (3), Portugal (1)
• Miocene to Pliocene of Falkland Islands (Malvinas) (1), North Atlantic (1)
• Miocene of Argentina (8), Azerbaijan (6), New Zealand (1), North Atlantic (1), Poland (1), Türkiye (1), United States (3: Maryland, Massachusetts, Virginia)
• Oligocene to Miocene of Argentina (12), New Zealand (1), United States (1: Maryland)
• Oligocene to Pleistocene of Argentina (1)
• Oligocene of Argentina (7), Azerbaijan (1)
• Eocene to Oligocene of Antarctica (1)
• Eocene to Miocene of Argentina (1)
• Eocene of Argentina (1), Australia (1), Colombia (4), Germany (1), Myanmar (2), Southern Ocean (1), United States (16: Alabama, California, Colorado, Florida, Louisiana, Mississippi, Missouri, Virginia, Wyoming), Venezuela (4)
• Paleocene to Eocene of United States (1: Virginia)
• Paleocene of Antarctica (2), Argentina (14), China (1), Colombia (5), India (1), United States (14: Missouri, Wyoming), Venezuela (19)
• Paleogene of Argentina (1)
• Cretaceous to Paleogene of Antarctica (1), Argentina (1)
• Cretaceous to Neogene of China (1)
• Cretaceous of Argentina (20), Australia (6), Brazil (160), Canada (4: Alberta), Chile (1), China (3), Colombia (22), Egypt (91), Ghana (18), India (1), Israel (5), Lebanon (1), Libya (1), Madagascar (1), Mexico (1), Morocco (1), Nigeria (27), North Atlantic (5), Peru (7), Romania (1), South Sudan (16), Spain (1), Sudan (49), the United Kingdom (1), United States (9: North Dakota, South Carolina)
• Jurassic to Cretaceous of Egypt (1)
• Jurassic of France (1)
• Triassic of Greenland (1), Norway (22), United States (1: New Mexico)
• Permian of China (1), India (4), Israel (1), Italy (6), Norway (1), United States (3: Oklahoma)
Total: 701 collections including 1309 occurrences