Class Mammalia Linnaeus, 1758 - mammals
Order Rodentia Bowdich, 1821 - rodents
Suborder Sciurognathi (Tullberg, 1899)
see Suborder Sciuromorpha Brandt, 1855
Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs
Subfamily Sciurinae Batsch, 1788 - tree and ground squirrels
Genus Tamias Illiger, 1811 - chipmunks
01 Tamias alpinus Merriam, 1893 - alpine chipmunk
02 Tamias amoenus J.A. Allen, 1890 - yellow-pine chipmunk
03 Tamias bulleri J. A. Allen, 1889 - Buller's chipmunk
04 Tamias canipes (V. Bailey, 1902) - grey-footed chipmunk
05 Tamias cinereicollis J.A. Allen, 1890 - grey-collared chipmunk
06 Tamias dorsalis Baird, 1855 - cliff chipmunk
07 Tamias durangae J. A. Allen, 1903
08 Tamias merriami J.A. Allen, 1889 - Merriam's chipmunk
09 Tamias minimus Bachman, 1839 - least chipmunk
10 Tamias obscurus J.A. Allen, 1890 - chaparral chipmunk
11 Tamias ochrogenys (Merriam, 1897) - yellow-cheeked chipmunk
12 Tamias palmeri (Merriam, 1897) - Palmer's chipmunk
13 Tamias panamintinus Merriam, 1893 - Panamint chipmunk
14 Tamias quadrimaculatus Gray, 1867 - long-eared chipmunk
15 Tamias quadrivittatus (Say, 1823) - Colorado chipmunk
16 Tamias ruficaudus (A.H. Howell, 1920) - red-tailed chipmunk
17 Tamias rufus (Hoffmeister & Ellis, 1979) - Hopi chipmunk
18 Tamias senex J.A. Allen, 1890 - Allen's chipmunk
19 Tamias sibiricus (E. Laxmann, 1769) - Siberian chipmunk
20 Tamias siskiyou (A.H. Howell, 1922) - Siskiyou chipmunk
21 Tamias sonomae (Grinnell, 1915) - Sonoma chipmunk
22 Tamias speciosus Merriam, 1890 - Lodgepole chipmunk
23 Tamias striatus (C. Linnaeus, 1758) - eastern chipmunk
24 Tamias townsendii Bachman, 1839 - Townsend's chipmunk
25 Tamias umbrinus J.A. Allen, 1890 - Uinta chipmunk
26 Subgenus Neotamias A. Howell, 1929
27 Subgenus Eutamias Trouessart, 1880 - Siberian and Western American chipmunks
28 Subgenus Tamias Illiger, 1811 - eastern American chipmunk