After Walton, 1993, McKenna & Bell, 1997, and Alroy, 2002-2005
<==o †Sciuravidae Miller & gidley, 1918 |--o †Pauromys Troxell, 1923a; L.-M.Eoc. NA | |-- †P. exallos Korth & Emry, 1989 | |-- †P. lillegraveni Walsh, 1997 | |-- †P. perditus Troxell, 1923a | |-- †P. schaubi A.E. Wood, 1959a | |-- †P. simplex Walton, 1993 | `-- †P. texensis Walton, 1993 |--o †Knightomys Gazin, 1961; L.-M.Eoc. NA. | |-- †K. cremneus Ivy, 1990 | |-- †K. cuspidatus (Bown, 1982) Korth, 1994c [Taxymys cuspidatus Bown, 1982] | |-- †K. depressus (Loomis, 1907) A.E. Wood, 1965 [Sciuravus depressus Loomis, 1907; Knightomys depressus (Loomis); A.E. Wood, 1965, Korth, 1984, and Ivy, 1990] [incl. Microparamys cathedralis A.E. Wood, 1962 = Knightomys depressus (Loomis); Guthrie, 1971, Korth, 1984, and Ivy, 1990; Microparamys lysitensis A.E. Wood, 1962 = Knightomys depressus (Loomis); Guthrie, 1971, Korth, 1984, and Ivy, 1990] | |-- †K. huerfanensis (A.E. Wood, 1962); Korth, 1984 [Paramys huerfanensis A.E. Wood, 1962] | |-- †K. minor (A.E. Wood, 1965); Korth, 1984 [Dawsonomys minor A.E. Wood, 1965; Knightomys minor (Wood); Korth, 1984, and Ivy, 1990] | |-- †K. reginensis (Korth, 1984); Flanagan, 1986 [Microparamys reginensis Korth, 1984] | `-- †K. senior (Gazin, 1952); Gazin, 1961 [Tillomys senior Gazin, 1952; Knightomys senior (Gazin); Gazin, 1961, Gazin, 1962, Korth, 1984, and Ivy, 1990] |--o †Tillomys Marsh, 1872; M.Eoc. NA. | |-- †T. senex Marsh, 1872 | `-- †T. parvidens (Marsh, 1872) [Sciuravus parvidens Marsh, 1872; Paramys parvidens (Marsh) Matthew, 1899; Tillomys parvidens (Marsh) Troxell, 1923c, R. Wilson, 1938a, R. Wilson, 1938b, and Gazin, 1976] |--o †Taxymys Marsh, 1872 [†Tachymys Osborn, Scott & Speir, 1878, †Toxymys Zittel, 1893 (lapsus calami)] M.Eoc. NA. | |-- †T. lucaris Marsh, 1872 [Tillomys lucaris (Marsh) Troxell, 1923c; Taxymys lucaris Marsh; R. Wilson, 1938a, R. Wilson, 1938c, McGrew et al., 1959, West, 1973b, Gazin, 1976, and Korth, 1984] | `?- †T. progressus Wilson, R. W., 1938 |--o †Sciuravus Marsh, 1871 [†Colonymys Marsh, 1872] L.-M.Eoc. NA., ?U.Eoc. As. | |-- †S. altidens Peterson, 1919 | |-- †S. bridgeri R.W. Wilson, 1938 | |-- †S. eucristidens Burke, 1937 | |-- †S. nitidus Marsh, 1871 [Sciuravus nitidus Marsh, 1871; Paramys nitidus (Marsh) Matthew, 1899, and Hay, 1902; Sciuravus nitidus Marsh; Matthew, 1910b, Troxell, 1923c, and R.W. Wilson, 1938a] [incl. Sciuravus undans Marsh, 1871; Paramys undans (Marsh) Cope, 1873; Plesiarctomys undans (Marsh) Cope, 1883; = Sciuravus nitidus Marsh; Troxell, 1923c, R.W. Wilson, 1938a, and McGrew et al., 1959; Colonomys celer Marsh, 1872 = Sciuravus nitidus Marsh; Troxell, 1923c, and R.W. Wilson, 1938a] [=? S. nitidens] | |-- †S. popi Dawson, 1966 | |-- †S. powayensis R.W. Wilson, 1940b | |?- †S. rarus R.W. Wilson, 1938 | `-- †S. wilsoni Gazin, 1961 |-- †Zelomys Wang & Li, 1990; M.Eoc. As. `-- †Guanajuatomys hibbardi Black & Stevens, 1973; M.-?U.Eoc. SWNA.
Reference(s):
- Alroy, J., 2002-2005: North American fossil mammal systematics database.
–iNet: North American fossil mammal systematics database: http://www.nceas.ucsb.edu/~alroy/nafmsd.html [visited: 2005-07-12] - 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. - Emry, R. J. & Korth, W. W., 1989: Rodents of the Bridgerian (Middle Eocene) Elderberry Canyon local faunaof Eastern Nevada.
–Smithsonian Contributions to Paleobiology: No. 67, pp. iv-14 - Gazin, C. L., 1976: Mammalian faunal zones of the Bridger Middle Eocene.
–Smithsonian Contributions to Paleobiology: No. 26, pp. iv-25 - 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 - Walton, A. H., 1993: Pauromys and other small Sciuravidae (Mammalia: Rodentia) from the Middle Eocene of Texas.
–Journal of Vertebrate Paleontology: Vol. 13, #2, pp. 243-261 - Zonneveld, J.-P., Gunnell, G. F. & Bartels, W. S., 2000: Early Eocene fossil vertebrates from the southwestern Green River basin, Lincoln and Uinta Counties, Wyoming.
–Journal of Vertebrate Paleontology: Vol. 20, #2, pp. 369-386