Mammalia - Rodentia - Cricetidae
Parent taxon: Sigmodontinae according to R. A. Martin et al. 2023
See also D'Elía 2003 and Steppan et al. 2004
Sister taxa: Abrothrix, Chelemys, Cordimus, Delomys, Euneomys, Geoxus, Handleyomys, Holochilus, Honeymys, Ichthyomyini, Ichthyurodon, Irenomys, Juliomys, Lundomys, Melanomys, Microryzomys, Nectomys, Noronhomys, Oligoryzomys, Oryzomyalia, Panchomys, Phyllotini, Pseudoryzomys, Rhipidomys, Scolomys, Sigmodontini, Thomasomys, Wiedomyini, Wilfredomys
Subtaxa: Agathaeromys Dushimys Oecomys Oryzomys Sooretamys
Type: Oryzomys
Ecology: ground dwelling herbivore
Distribution:
• Quaternary of Antigua and Barbuda (4 collections), Bonaire (5), Brazil (8), Canada (1: Saskatchewan), Curaçao (1), Jamaica (2), Mexico (1), Panama (1), Peru (1), United States (26: Florida, Georgia, Kansas, Texas), Venezuela (1)
• Blancan of United States (1: New Mexico)
• Pliocene to Holocene of Bonaire (1)
Total: 53 collections including 72 occurrences