Subfamily Octodontinae Waterhouse 1839 (caviomorph)

Mammalia - Rodentia - Octodontidae

Parent taxon: Octodontidae according to M. E. Fernández et al. 2000

Sister taxa: Eoctodon, Eucoelophorus, Massoiamys, Metacaremys, Octodontomys, Octomys, Palaeoctodon, Phthoramys, Phtoramys, Pithanotomys, Plataeomys, Pseudoplataeomys

Subtaxa: Abalosia Octodon Sciamys Spalacopus Tympanoctomys

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Ecology: ground dwelling herbivore

Distribution:

• Quaternary of Argentina (3 collections), Chile (1)

• Pliocene of Argentina (3)

• Miocene of Argentina (10), Chile (1)

Total: 18 collections including 27 occurrences

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