Mammalia - Rodentia - Hydrochoeridae
Alternative spelling: Hydrochaeridae
Parent taxon: Cavioidea according to D. Huchon and E. J. P. Douzery 2001
See also Albright et al. 2019, Candela et al. 2012, Carroll 1988, Kurten and Anderson 1980, MacFadden et al. 1993, Mones and Ojasti 1986, Nowak 1991, Nowak 1999, Perez and Pol 2012, Prado et al. 1998, Vucetich et al. 2015 and Wood 1958
Sister taxa: Agoutidae, Andemys, Asteromys, Banderomys, Caviidae, Chubutomys, Cuniculidae, Dasyproctidae, Eobranisamys, Eocardia, Eocardiidae, Guiomys, Luantus, Microcardiodon, Neoreomys, Soriamys
Subtaxa: Anatochoerinae Anatochoerus Cantracavia Cardiatheriinae Cardiatherium Contracavia Phugatherium Protohydrochoerinae
Type: Hydrochoerus
Ecology: amphibious grazer
Distribution:
• Quaternary of Brazil (1 collection), Mexico (2), United States (4: Florida), Venezuela (1)
• Blancan of Mexico (2), United States (7: Arizona, Florida)
• Pliocene to Pleistocene of Venezuela (1)
• Pliocene of Argentina (19), Bolivia (3), United States (1: South Carolina), Venezuela (1)
• Huayquerian of Argentina (15)
• Miocene of Argentina (9), Brazil (4), Uruguay (1), Venezuela (2)
Total: 73 collections including 99 occurrences