Class Mammalia Linnaeus, 1758 - mammals
Count: [*] 26o;133f;1112g;4545s;7ss; ‡3f;23g;88s; †1g;9s
   Order Rodentia Bowdich, 1821 - rodents
  Count: [*] 28f;427g;1970s; ‡1f;16g;48s; †1g;4s
     Suborder Sciurognathi (Tullberg, 1899) see Suborder Sciuromorpha Brandt, 1855
    Count: [*] 11f;370g;1762s; ‡5g;24s; †3g;7s
       Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs
      Count: [*] 50g;273s
         Subfamily Sciurinae Batsch, 1788 - tree and ground squirrels
        Count: [*] 36g;230s
           Genus Tamiasciurus Trouessart, 1880 - American red squirrels
          Count: [*] 3s
             1 Tamiasciurus douglasii (Bachman, 1839) - Douglas' squirrel
            Count: -
             2 Tamiasciurus hudsonicus (Erxleben, 1777) - American red squirrel
            Count: -
             3 Tamiasciurus mearnsi Townsend, 1897
            Count: -