After McKenna & Bell, 1997, with Recent species from Nowak, 1991
<==o Thomomyini R.J. Russell, 1968 `--o Thomomys Wied-Neuwied, 1839 [Tomomys Brandt, 1855] [incl. Megascapheus Elliot, 1903; †Plesiothomomys Gidley & Gazin, 1933] L.Plioc.-R. NA. (western pocker gophers, smooth-toothed pocket gophers; taskurotat) |-- †T. sp. |-- †T. carsonensis Kelly, 1994 |-- †T. gidleyi R. Wilson, 1933 |-- †T. microdon Sinclair, 1905 |-- †T. orientalis Simpson, 1928 |-- †(Plesiothomomys) potomacensis (Gidley & Gazin, 1933) Kurten & Anderson, 1980 |--o (Megascapheus) Elliot, 1903 | |-- T. (M.) talpoides [Cricetus talpoides Richardson, 1828; Thomomys talpoides (Richardson) Kurten & Anderson, 1980] (mountain pocket gopher) | |-- T. (M.) idahoensis (idahontaskurotta) | |-- T. (M.) clusius (coues pocket gopher) | |--o T. (M.) mazama (mazama pocket gopher) | | |-- †T. (M.) m. tacomensis | | `-- T. (M.) m. mazama ()? | `-- T. (M.) monticola (vuoritaskurotta) `--o (Thomomys) |-- T. (T.) bulbivorus (pohjantaskurotta) |-- T. (T.) bottae (Eydoux & Gervais, 1836) [Oryctomys bottae Eydoux & Gervais, 1836; Thomomys bottae (Eydoux & Gervais) Kurten & Anderson, 1980] (laaksotaskurotta) |-- T. (T.) townsendii (Bachman, 1839) [Geomys townsendii Bachman, 1839; Thomomys umbrinus Hall, 1981; Thomomys townsendii (Bachman) Thaeler, 1968, Kurtén & Anderson, 1980, Patton et al., 1984, Patton & Smith, 1989, Rogers, 1991, and D. Wilson & Reeder, 1993] (townsend's pocket gopher) `-- T. (T.) umbrinus (Richardson, 1829) [Geomys umbrinus Richardson, 1829; Thomomys umbrinus (Richardson) Kurten & Anderson, 1980; incl. Thomomys townsendii (Bachman) sensu Hall, 1981] (meksikontaskurotta)
Reference(s):
- Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698 - Carroll, R. L., 1988: Appendix. 594-648
in Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698 - McKenna, M. C. & Bell, S. K., (eds.) 1997: Classification of mammals – above the species level.
–Columbia University Press, New York, 1997, xii-631 - Nowak, R. M., 1991: Walker's Mammals of the World; Part 1.
–The Johns Hopkins University Press, Baltimore and London, 1991, xlviii-642-lxiii - Nowak, R. M., 1991: Walker's mammals of the World; Part 2.
–The Johns Hopkins University Press, Baltimore and London, 1991, xii-643-1629 - Korth, W. W., Wahlert, J. H. & Emry, R. J., 1991: A new species of Heliscomys and recognition of the family Heliscomyidae (Geomyoidea: Rodentia).
–Journal of Vertebrate Paleontology: Vol. 11, #2, pp. 247-256