Ginkgoopsida - Czekanowskiales
Parent taxon: Ginkgoopsida according to C. Sun et al. 2009
See also Meyen 1984 and Taylor et al. 2008
Sister taxa: Asterophyllum, Calamopityales, Callistophytales, Caytoniales, Dactylophyllum, Ephedrales, Ginkgoales, Karkeniales, Leptostrobales, Linguifolium, Pentoxylales, Umaltolepididae
Subtaxa: Arctobaiera Czekanowskia Hartzia Ixostrobus Leptostrobus Phoenicopsis Solenites Sphenarion
Distribution:
• Cretaceous of Canada (5: Alberta, British Columbia collections), China (6), Kazakhstan (1), Mongolia (1), the Russian Federation (3), Svalbard and Jan Mayen (3), United States (6: Alaska, Wyoming)
• Jurassic to Cretaceous of Canada (2: British Columbia), India (1), the Russian Federation (7)
• Jurassic of Afghanistan (3), Belarus (2), China (120), Georgia (10), Greenland (14), India (2), Iran (1), Japan (3), Kazakhstan (26), Kyrgyzstan (2), Mongolia (9), Norway (1), Poland (2), Portugal (1), Romania (23), the Russian Federation (208), South Africa (1), Tajikistan (18), Ukraine (3), the United Kingdom (23), United States (6: Colorado, New Mexico, Utah), Uzbekistan (10)
• Triassic to Jurassic of Australia (1), Canada (1: Northwest Territories), Georgia (2), Kazakhstan (1), Romania (1), the Russian Federation (1), Ukraine (1)
• Triassic of Afghanistan (2), Argentina (3), Australia (3), Canada (1: Nunavut), China (10), Greenland (8), Hungary (1), Japan (3), Kazakhstan (1), Kyrgyzstan (1), Mongolia (4), the Russian Federation (18), South Korea (4), Tajikistan (2), Ukraine (3), United States (1: North Carolina)
• Permian of the Russian Federation (2)
Total: 598 collections including 1241 occurrences