Parent taxon: Rosales according to F. H. Knowlton 1926
See also Hueber 1983, Knowlton 1919 and Koeniguer 1967
Sister taxa: Barbeyaceae, Cannabaceae, Davidsoniaceae, Dialypetalanthaceae, Dirachmaceae, Drupaceae, Elaeagnaceae, Eucryphiaceae, Mimosaceae, Papilionaceae, Pomaceae, Rhamnaceae, Rosaceae, Ulmaceae, Urticaceae
Subtaxa: Caesalpinites Caesalpinium Cercidoxylon Gleditsia Gleditsiophyllum Hymenaea Palaeocassia Paleocaesalpiniaceaepites Senna
Ecology: "photoautotroph"
Distribution:
• Quaternary of the Congo-Kinshasa (1 collection)
• Pliocene to Pleistocene of Tanzania (1)
• Pliocene of Bolivia (2)
• Miocene to Pliocene of Japan (1)
• Miocene to Pleistocene of Burundi (1)
• Miocene to Oligocene of United States (1: Montana)
• Miocene of Argentina (3), China (5), Cuba (1), Germany (1), India (1), Japan (3), Switzerland (3)
• Oligocene of United States (1: Idaho)
• Eocene to Oligocene of United States (2: Colorado)
• Eocene of China (1), France (1), India (5), Japan (2), United States (3: Colorado, Wyoming)
• Cretaceous of Canada (1: British Columbia)
Total: 40 collections including 45 occurrences