Opinions from M. Arnal and M. G. Vucetich 2015
- 'Acarechimys belongs to Octodontoidea'
- 'Acaremyinae was reranked as the family Acaremyidae and belongs to Octodontoidea'
- 'Acaremys belongs to Acaremyidae'
- 'Adelphomys belongs to Octodontoidea'
- 'Cachiyacuy belongs to Caviomorpha'
- 'Canaanimys belongs to Caviomorpha'
- 'Caviocricetus belongs to Octodontoidea'
- 'Cephalomys belongs to Cephalomyidae'
- 'Changquin belongs to Octodontoidea'
- 'Chasichimys belongs to Octodontoidea'
- 'Ctenomyidae belongs to Octodontoidea'
- 'Deseadomys belongs to Octodontoidea'
- 'Draconomys belongs to Octodontoidea'
- 'Dudumus belongs to Octodontoidea'
- 'Eodelphomys belongs to Octodontoidea'
- 'Eoespina belongs to Octodontoidea'
- 'Eosachacui belongs to Octodontoidea'
- 'Eosallamys belongs to Octodontoidea'
- 'Eosteiromys belongs to Erethizontoidea'
- 'Eoviscaccia belongs to Chinchilloidea'
- 'Ethelomys belongs to Octodontoidea'
- 'Eumysops belongs to Octodontoidea'
- 'Galileomys belongs to Acaremyidae'
- 'Garridomys belongs to Chinchilloidea'
- 'Kannabateomys belongs to Octodontoidea'
- 'Leucokephalos belongs to Octodontoidea'
- 'Llitun belongs to Octodontoidea'
- 'Migraveramus belongs to Octodontoidea'
- 'Myocastor belongs to Octodontoidea'
- 'Neophanomys belongs to Octodontoidea'
- 'Octodontidae belongs to Octodontoidea'
- 'Octodontomys belongs to Octodontidae'
- 'Octomys belongs to Octodontidae'
- 'Paulacoutomys belongs to Octodontoidea'
- 'Pithanotomys belongs to Octodontidae'
- 'Plataeomys belongs to Octodontidae'
- 'Platypittamys belongs to Acaremyidae'
- 'Plesiacarechimys belongs to Octodontoidea'
- 'Proechimys belongs to Octodontoidea'
- 'Prospaniomys belongs to Octodontoidea'
- 'Protacaremys belongs to Octodontoidea'
- 'Sallamys belongs to Octodontoidea'
- 'Spaniomys belongs to Octodontoidea'
- 'Steiromys belongs to Erethizontoidea'
- 'Stichomys belongs to Octodontoidea'
- 'Xylechimys belongs to Octodontoidea'