Parent taxon: Ginkgoopsida according to S. V. Meyen 1984
See also Lapasha and Miller 1985 and Taylor et al. 2008
Sister taxa: Asterophyllum, Calamopityales, Callistophytales, Czekanowskiales, Dactylophyllum, Ephedrales, Ginkgoales, Karkeniales, Leptostrobales, Linguifolium, Pentoxylales, Umaltolepididae
Subtaxa: Amphorispermum Caytoniaceae Gristhorpia Microcheiris Pseudosagenopteris Scoresbya Vitreisporites
Ecology: "photoautotroph"
Distribution:
• Eocene of Antarctica (1 collection), Australia (1), United States (6: California)
• Paleocene of United States (1: California)
• Cretaceous of Antarctica (13), Argentina (14), Australia (13), Belgium (1), Brazil (1), Canada (17: Alberta, British Columbia), Chile (4), China (2), Germany (1), Greenland (2), India (1), North Atlantic (6), the Russian Federation (5), United States (19: Montana, North Dakota)
• Jurassic to Cretaceous of Argentina (1), Canada (2: British Columbia), India (2), Peru (1)
• Jurassic of Afghanistan (1), Antarctica (2), Argentina (12), Azerbaijan (1), Belarus (1), Canada (1: Yukon), China (21), Colombia (1), France (2), Georgia (10), Germany (1), Greenland (9), India (5), Iran (2), Italy (1), Japan (2), Kazakhstan (4), Kyrgyzstan (2), Mexico (3), Montenegro (2), Poland (3), Portugal (1), Romania (13), the Russian Federation (21), Tajikistan (8), Turkmenistan (1), Ukraine (1), the United Kingdom (35), United States (3: Alaska, Montana, Oregon/Idaho), Uzbekistan (2)
• Triassic to Jurassic of Sweden (1), the United Kingdom (1)
• Triassic of Antarctica (1), Argentina (2), Australia (1), Canada (1: Alberta), China (17), Germany (1), Greenland (9), Iran (1), Ireland (3), Israel (2), Italy (2), Japan (2), Kyrgyzstan (1), Mexico (1), the Netherlands (2), Norway (7), the Russian Federation (4), Sweden (2), Tajikistan (2), Ukraine (2), United States (3: New Mexico, Virginia, Virginia/North Carolina)
• Rotliegendes of Norway (1)
• Permian of Antarctica (1), Germany (7), India (4), Italy (1), Norway (2), Poland (5), the Russian Federation (1)
• Carboniferous of Canada (1: Nova Scotia)
Total: 376 collections including 454 occurrences