Holarctic Ground Squirrels (Urocitellus) is a biological genus in the family Sciuridae (Squirrels) and order Rodentia (Rodents).
Urocitellus parryii
Urocitellus beldingi
Urocitellus columbianus
Urocitellus brunneus
Urocitellus undulatus
Urocitellus canus
Urocitellus mollis
Urocitellus richardsonii
Urocitellus townsendii
Urocitellus armatus
Urocitellus washingtoni
Urocitellus elegans
Aeretes
Protoxerus
Epixerus
Ammospermophilus
Hylopetes
Sciurotamias
Funambulus
Atlantoxerus
Belomys
Biswamoyopterus
Paraxerus
Tamias
Neotamias
Petinomys
Microsciurus
Eoglaucomys
Eupetaurus
Pteromys
Poliocitellus
Petaurista
Glyphotes
Callospermophilus
Urocitellus
Ictidomys
Marmota
Menetes
Myosciurus
Nannosciurus
Glaucomys
Spermophilus
Callosciurus
Cynomys
Pteromyscus
Petaurillus
Xerospermophilus
Exilisciurus
Tamiasciurus
Dremomys
Rheithrosciurus
Rhinosciurus
Otospermophilus
Funisciurus
Rubrisciurus
Sciurillus
Spermophilopsis
Lariscus
Prosciurillus
Hyosciurus
Heliosciurus
Sundasciurus
Syntheosciurus
Sciurus
Trogopterus
Notocitellus