Angiospermae - Rosales - Ulmaceae
Parent taxon: Ulmaceae according to K. Ozaki 1974
See also Brown 1959, Christophel 1976 and Liu et al. 1996
Sister taxa: Cedrelospermum, Celtidophyllum, Celtipollenites, Celtis, Celtoidanthus, Chaetoptelea, Hemiptelea, Holoptelea, Holopteleoxylon, Momisia, Planera, Pteroceltis, Tremophyllum, Ulmaceaepites, Ulmacites, Ulmites, Ulmophyllum, Ulmoxylon, Ulmus, Ulmuxylon
Subtaxa: Zelkova ungeri
Ecology: "photoautotroph"
Distribution:
• Quaternary of France (1 collection), Japan (3)
• Pliocene to Pleistocene of Italy (2)
• Pliocene of China (2), Germany (1), Slovakia (1)
• Miocene to Oligocene of United States (1: Montana)
• Miocene to Pliocene of Japan (5)
• Miocene of Azerbaijan (1), China (5), Germany (4), Japan (12), Poland (1), the Russian Federation (1), Spain (1), Switzerland (5), United States (7: California, Idaho, Montana, Nevada)
• Neogene of China (2)
• Oligocene to Miocene of Germany (1), United States (3: Montana)
• Oligocene to Eocene of United States (1: Oregon)
• Oligocene of China (1), the Czech Republic (1), the United Kingdom (1), United States (3: Idaho, Montana, Oregon)
• Eocene of Canada (1: British Columbia), China (5), Germany (1), Japan (1), United States (8: Colorado, Washington, Wyoming)
• Tertiary of Japan (1)
• Paleocene of Canada (1: Alberta), United States (13: Colorado, Montana, South Dakota)
• Cretaceous of Canada (1: British Columbia)
Total: 98 collections including 107 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.