Class [Mammalia] Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     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 merriami J.A. Allen, 1889 - Merriam's chipmunk
           08 Tamias minimus Bachman, 1839 - least chipmunk
           09 Tamias obscurus J.A. Allen, 1890 - chaparral chipmunk
           10 Tamias palmeri (Merriam, 1897) - Palmer's chipmunk
           11 Tamias panamintinus Merriam, 1893 - Panamint chipmunk
           12 Tamias quadrimaculatus Gray, 1867 - long-eared chipmunk
           13 Tamias quadrivittatus (Say, 1823) - Colorado chipmunk
           14 Tamias ruficaudus (A.H. Howell, 1920) - red-tailed chipmunk
           15 Tamias rufus (Hoffmeister & Ellis, 1979) - Hopi chipmunk
           16 Tamias sibiricus (E. Laxmann, 1769) - Siberian chipmunk
           17 Tamias sonomae (Grinnell, 1915) - Sonoma chipmunk
           18 Tamias speciosus Merriam, 1890 - Lodgepole chipmunk
           19 Tamias striatus (C. Linnaeus, 1758) - eastern chipmunk
           20 Tamias townsendii Bachman, 1839 - Townsend's chipmunk
           21 Tamias umbrinus J.A. Allen, 1890 - Uinta chipmunk