Rodentia
Abrocomidae
Bathyergidae
Capromyidae
Caviidae
Chinchillidae
Ctenomyidae
Cuniculidae
Dasyproctidae
Dinomyidae
Echimyidae
Erethizontidae
Hydrochaeridae
Hystricidae
Laonastidae
Myocastoridae
Octodontidae
Petromuridae
Thryonomyidae