†subfamily Eumegamyinae Kraglievich 1926 (caviomorph)

Mammalia - Rodentia - Dinomyidae

Parent taxon: Dinomyidae according to M. C. McKenna and S. K. Bell 1997

See also Paula Couto 1956

Sister taxa: Briaromys, Carlesia, Colpostemma, Diaphoromys, Dinomys, Discolomys, Doellomys, Drytomomys, Eumegamys, Eumegamysops, Eusigmomys, Ferigolomys, Gyriabrus, Josephoartigasia, Olenopsis, Paranamys, Pentastylodon, Pentastylomys, Potamarchinae, Protomegamys, Pseudosigmomys, Rusconia, Scleromys, Simplimus, Telicomys, Telodontomys, Tetrastylomys

Subtaxa: Arazamys Isostylomys Tetrastylus

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Ecology: ground dwelling frugivore-folivore

Distribution:

• Quaternary of Brazil (1 collection)

• Pliocene of Argentina (2), Uruguay (1)

• Huayquerian of Argentina (12)

• Miocene of Argentina (2), Brazil (3), Peru (1), Uruguay (1), Venezuela (2)

Total: 25 collections including 41 occurrences

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