Opinions from G. D'Elía 2003
- 'Abrothrix belongs to Sigmodontinae'
- 'Akodon belongs to Akodontini'
- 'Akodontini belongs to Sigmodontinae'
- 'Auliscomys belongs to Phyllotini'
- 'Bibimys belongs to Akodontini'
- 'Blarinomys belongs to Akodontini'
- 'Brucepattersonius belongs to Akodontini'
- 'Chelemys belongs to Sigmodontinae'
- 'Cholomys belongs to Wiedomyini'
- 'Chroeomys is a subjective synonym of Abrothrix'
- 'Cricetidae belongs to Muroidea'
- 'Delomys belongs to Sigmodontinae'
- 'Deltamys belongs to Akodontini'
- 'Eligmodontia belongs to Phyllotini'
- 'Euneomys belongs to Sigmodontinae'
- 'Geoxus belongs to Sigmodontinae'
- 'Graomys belongs to Phyllotini'
- 'Irenomys belongs to Sigmodontinae'
- 'Juliomys belongs to Sigmodontinae'
- 'Juscelinomys belongs to Akodontini'
- 'Kunsia belongs to Akodontini'
- 'Lenoxus belongs to Akodontini'
- 'Loxodontomys belongs to Phyllotini'
- 'Mus (Calomys) was reranked as Calomys and belongs to Phyllotini'
- 'Necromys belongs to Akodontini'
- 'Oecomys belongs to Oryzomyini'
- 'Oryzomyini belongs to Sigmodontinae'
- 'Oryzomys belongs to Oryzomyini'
- 'Oxymycterus belongs to Akodontini'
- 'Phyllotini belongs to Sigmodontinae'
- 'Phyllotis belongs to Phyllotini'
- 'Prosigmodon belongs to Sigmodontini'
- 'Reithrodon belongs to Reithrodontini'
- 'Reithrodontini belongs to Sigmodontinae'
- 'Rhipidomys belongs to Sigmodontinae'
- 'Scapteromys belongs to Akodontini'
- 'Scolomys belongs to Sigmodontinae'
- 'Sigmodon belongs to Sigmodontini'
- 'Sigmodontinae belongs to Cricetidae'
- 'Sigmodontini belongs to Sigmodontinae'
- 'Thalpomys belongs to Akodontini'
- 'Thaptomys belongs to Akodontini'
- 'Thomasomyini is an invalid subgroup of Sigmodontinae'
- 'Thomasomys belongs to Sigmodontinae'
- 'Wiedomyini belongs to Sigmodontinae'
- 'Wiedomys belongs to Wiedomyini'