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
Ecology: ground dwelling herbivore
Distribution: