Subfamily Hydrochoerinae Gill 1872 (caviomorph)

Mammalia - Rodentia - Caviidae

Parent taxon: Caviidae according to M. E. Perez and D. Pol 2012

Sister taxa: Allocavia, Cardiomyinae, Cardiomys, Cavia, Caviinae, Caviodon, Caviops, Dolicavia, Dolichotinae, Dolichotis, Kerodon, Microcavia, Neocavia, Orthomyctera, Pascualia, Procardiomys, Prodolichotis, Propediolagus

Subtaxa: none

Ecology: ground dwelling herbivore

Distribution:

• Quaternary of Argentina (6 collections), Bolivia (6), Brazil (16), Colombia (2), Ecuador (1), El Salvador (1), Guatemala (3), Honduras (1), Mexico (3), Nicaragua (1), Panama (2), Peru (5), United States (33: Florida, Georgia, South Carolina, Texas, Virginia), Uruguay (3), Venezuela (3)

• Blancan of Mexico (3), United States (2: Arizona, Florida)

• Pliocene to Pleistocene of Grenada (1)

• Pliocene of Argentina (4), Colombia (1), Venezuela (1)

• Montehermosan of Argentina (1)

• Hemphillian of United States (1: Florida)

• Miocene of Argentina (2)

Total: 102 collections including 115 occurrences

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