Angiospermae - Saxifragales - Cercidiphyllaceae
Parent taxon: Saxifragales according to The Angiosperm Phylogeny Group 2016
See also Christophel 1976, Hickey 1977, Jud 2011, Mabberley 2000, MacGinitie 1941, McIver and Basinger 1993 and Taylor et al. 2008
Sister taxa: Altingiaceae, Ambaroxylon, Aphanopetalaceae, Crassulaceae, Cynomoriaceae, Daphniphyllaceae, Escalloniiphyllum, Grossulariaceae, Haloragaceae, Haloragis, Hamamelidaceae, Iteaceae, Paeoniaceae, Penthoraceae, Peridiscaceae, Saxifragaceae, Tetracarpaeaceae
Subtaxa: Archeampelos Cercidiphyllites Cercidiphylloxylon Cercidiphyllum Trochodendroides
Ecology: "photoautotroph"
Distribution:
• Quaternary of Japan (1 collection)
• Pliocene of Germany (1)
• Miocene to Oligocene of United States (1: Montana)
• Miocene to Pliocene of Japan (1)
• Miocene of China (1), Germany (4), Japan (1), Switzerland (1), United States (1: Montana)
• Oligocene to Miocene of Germany (1), United States (3: Montana)
• Oligocene of the Czech Republic (1), United States (8: Idaho, Montana, Oregon)
• Eocene of Canada (4: British Columbia, Nunavut), China (4), the United Kingdom (1), United States (45: California, Colorado, Idaho, Louisiana, North Dakota, Washington, Wyoming)
• Tertiary of Japan (1)
• Paleocene of Canada (12: Alberta, Saskatchewan), China (2), the United Kingdom (1), United States (134: Colorado, Montana, New Mexico, North Dakota, South Dakota, Wyoming)
• Cretaceous of Canada (13: Alberta, British Columbia, Saskatchewan), the Russian Federation (4), United States (69: Colorado, Montana, New Mexico, North Dakota, South Dakota, Wyoming)
Total: 315 collections including 346 occurrences