Kæledyr Liv
underordnet sciuromorpha (egernlignende gnavere)
familie Sciuridae (egern)
* Tree Squirrels:
* Eastern Gray Squirrel (Sciurus carolinensis)
* Fox Squirrel (Sciurus Niger)
* Rød egern (Tamiasciurus hudsonicus)
* Aberts egern (Sciurus Aberti)
* Douglas Squirrel (Tamiasciurus Douglasii)
* Flyvende egern (Glaucomys spp.)
* jorden egern:
* Ground Squirrel (Spermophilus spp.)
* Chipmunk (Tamias spp.)
* Marmot (Marmota spp.)
* Prairie Dogs:
* Black-Tailed Prairie Dog (Cynomys Ludovicianus)
* White-tailed Prairie Dog (Cynomys Leucurus)
* Gunnisons Prairie Dog (Cynomys Gunnisoni)
* egern:
* Pygmy egern (Sciurillus spp.)
* Giant Squirrel (Ratufa spp.)
* Andet:
* Marmot (Marmota spp.)
* Rock Squirrel (Spermophilus variegatus)
* Stribet jordekorn (Spermophilus tridecemlinatus)
familie Castoridae (Beavers)
* Beaver (Castor spp.)
Family Geomyidae (Pocket Gophers)
* Pocket Gopher (Geomys spp.)
familie Heteromyidae (Kangaroo Rats, Pocket Mus)
* Kangaroo Rat (Dipodomys spp.)
* Pocket Mouse (Perognathus spp.)
familie Zapodidae (Jumping Mus)
* Jumping Mouse (Zapus spp.)
underordnet myomorpha (muselignende gnavere)
familie Cricetidae (hamstere, voles, mus)
* Voles:
* Meadow Vole (Microtus Pennsylvanicus)
* Rød-støttet vole (myodes gapperi)
* Vandvole (Arvicola Terrestris)
* Long-tailed Vole (Microtus Longicaudus)
* mus:
* House Mouse (Mus Musculus)
* Hvidfodet mus (Peromyscus leucopus)
* Hjortemus (Peromyscus maniculatus)
* Harvest Mus (Reithrodontomys spp.)
* rotter:
* Norge Rat (Rattus Norvegicus)
* Tag rotte (rattus rattus)
* hamstere:
* Golden Hamster (mesocricetus auratus)
* Syrisk hamster (mesocricetus auratus)
* Europæisk hamster (Cricetus Cricetus)
* Dwarf Hamster (Phodopus spp.)
* Andet:
* Lemming (Lemmus spp.)
* MUSKRAT (Ondatra zibethicus)
* Field Mouse (Apodemus spp.)
familie Muridae (gamle verdensrotter og mus)
* rotter:
* Sort rotte (rattus rattus)
* Brown Rat (Rattus Norvegicus)
* mus:
* House Mouse (Mus Musculus)
* Field Mouse (Apodemus spp.)
* Andet:
* Spiny Mouse (ACOMYS SPP.)
* Giant Rat (Cricetomys Gambianus)
* Bandicoot Rat (Bandicota spp.)
familie erethizontidae (New World Porcupines)
* Nordamerikansk piggsvin (erethizon dorsatum)
Familiehystricidae (Old World Porcupines)
* Indisk crested piggsvin (hystrix indica)
* African Crested Porcupine (Hystrix Cristata)
Familie Dipodidae (Jerboas)
* Jerboa (Jaculus spp.)
Familie Spalacidae (mol rotter)
* Naked Mole Rat (Heterocephalus Glaber)
* Common Mole Rat (Spalax spp.)
underordnet hystricomorpha (piggsvinlignende gnavere)
Familie Chinchillidae (Chinchillas, Viscachas)
* Chinchilla (Chinchilla spp.)
* Viscacha (Lagidium spp.)
familie Dasyproctidae (Agoutis, Pacas)
* Agouti (Dasyprocta spp.)
* Paca (Cuniculus Paca)
familie Capromyidae (Hutia)
* Hutia (Capromys spp.)
familie Caviidae (Capybara, Maras, Cavies)
* Capybara (hydrochoerus hydrochaeris)
* Mara (Dolichotis spp.)
* Guinea Pig (Cavia Porcellus)
familie Dinomyidae (Giant Rat)
* Giant Rat (Dinomys Branickii)
Familie Echimyidae (spiny rotter)
* Spiny rotte (Echimys spp.)
underordnet anomaluromorpha (hoppende mus)
Familie Anomaluridae (skællende tailed egern)
* SCALY-TAILED SPURNREL (Anomalurus spp.)
underordnet Castorimorpha (bæverlignende gnavere)
familie Castoridae (Beavers)
* Beaver (Castor spp.)
Familie Bathyergidae (mol rotter)
* Naked Mole Rat (Heterocephalus Glaber)
* Cape Mole Rat (Georychus capensis)
familie Pedetidae (Springhares)
* Springhare (Pedetes capensis)
Bemærk: Dette er ikke en udtømmende liste, da der er mange flere gnaverarter over hele verden.