Order Hiodontiformes (ray-finned fish)
Parent taxon: Osteoglossomorpha according to R. Betancur et al. 2013
See also Guo-Qing and Wilson 1994, Long 2011, Nelson 2006 and Nelson et al. 2016
Sister taxa: Chandlerichthys, Joffrichthys, Lycopteriformes, Osteoglossiformes, Shuleichthys
Subtaxa: Hiodontidae
Ecology:
Distribution:
• Quaternary of Canada (1: Quebec collection)
• Eocene to Oligocene of United States (1: Oregon)
• Eocene of Canada (3: British Columbia), United States (4: Montana, Washington, Wyoming)
• Paleocene of Bolivia (1)
• Cretaceous of Canada (10: Alberta, Saskatchewan), China (1), United States (9: Montana, Utah, Wyoming)
Total: 30 collections including 32 occurrences