Kingdom [Animalia] Linnaeus, 1758 - animals
Subkingdom Metazoa Haeckel, 1874
see Kingdom Animalia Linnaeus, 1758
Division Eumetazoa Butschli, 1910
see Subkingdom Eumetazoa Butschli, 1910
Subdivision Bilateralia
Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Class Mammalia Linnaeus, 1758 - mammals
Subclass Eutheria Gill, 1872
see Infraclass Eutheria Gill, 1872
Order Rodentia Bowdich, 1821 - rodents
Suborder Sciuromorpha Brandt, 1855
Superfamily Sciuroidea Batsch, 1788
Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs
Subfamily Sciurinae Batsch, 1788 - tree and ground squirrels
Tribe Marmotini Pocock, 1923
Genus Citellus Oken, 1816
see Genus Spermophilus Cuvier, 1825
Citellus suslicus (Güldenstaedt, 1770)
see Spermophilus suslicus Güldenstaedt, 1770