After McKenna & Bell, 1997, and Hooker, Russell & Phélizon, 1999
<==o †Microsyopoidea Osborn & Wortman, 1892 [Microsyopidae Osborn & Wortman, 1892 sensu Hooker, Russell & Phélizon, 1999] |--o †Picromomyidae Rose & Bown, 1996 | |-- †Picromomys Rose & Bown, 1996 | `-- †Alveojunctus minutus Bown, 1982 |--o †Toliapinidae Hooker, Russell & Phélizon, 1999 | |?- †Seia shahi Russell & Gingerich, 1981 [formerly an erinaceomorph insectivoran] | |-- †Berruvius lasseroni Russell, 1964 [a navajoviine sensu McKenna & Bell, 1997] | |-- †Sarnacius gingerichi (Russell, 1981) Hooker, Russell & Phélizon, 1999 [B. gingerichi] | `--+-- †Altiatlasius koulchii Sigé, Jaeger, Sudre & Vianey-Liaud, 1990 [formerly an omomyid primate] | `--+-- †Avenius amatorum Russell, Phélizon & Louis, 1992; L. Eoc. Eu. | `--o †Toliapina Hooker, Russell & Phélizon, 1999 | |-- †T. vinealis Hooker, Russell & Phélizon, 1999 | `-- †T. lawsoni Hooker, Russell & Phélizon, 1999 `--o †Microsyopidae Osborn & Wortman, 1892 [non Microsyopidae Osborn, 1892 sensu McKenna & Bell, 1997] |--o †Uintasoricinae Szalay, 1969 [incl. Navajoviinae Gunnell, 1989] | |?- †Avenius amatorum Russell, Phélizon & Louis, 1992; L. Eoc. Eu. | |--o †Choctawius Beard & Dawson, 2009 | | |-- †C. foxi Beard & Dawson, 2009 | | `-- †C. mckennai (Szalay, 1969) | `--+-- †Navajovius kohlhaasae Matthew & Granger, 1921 [Navajoviini Szalay & Delson, 1979 ] [Navajoviinae Gunnell, 1989] | `--o †Uintasoricini Szalay, 1969 [Uintasoricinae Szalay, 1969] | |--o †Niptomomys McKenna, 1960 | | |-- †N. doreenae McKenna, 1960 | | `-- †N. thelmae | `--+-- †Nanomomys thermophilus Rose et al., 2012 | `--+-- †Bartelsia pentadactyla Gunnell, 2012 | `-- †Uintasorex parvulus Matthew, 1909b `--o †Microsyopinae (Osborn & Wortman, 1892) Matthew, 1915 [non Microsyopinae (Osborn, 1892) Matthew, 1915 sensu McKenna & Bell, 1997] |--o †Arctodontomys Gunnell, 1985 | |-- †A. wilsoni (Szalay, 1969) [Microsyops wilsoni] | |-- †A. simplicidens (Rose, 1981) [Microsyops simplicidens] | `-- †A. nuptus (Cope 1882) [Cynodontomys nuptus; Diacodexis nuptus; Pantolestes nuptus] `--+--o †Microsyops Leidy, 1872 [Bathrodon Marsh, 1872; Mesacodon Marsh, 1872; Palaeacodon Leidy, 1872; Cynodontomys Cope, 1882] | |-- †M. angustidens Matthew, 1915 [Cynodontomys alfi McKenna, 1960; Microsyops alfi (McKenna, 1960)] | |-- †M. annectens (Marsh, 1872 [Microsyops schlosseri Wortman, 1903; Bathrodon annectens] | |-- †M. cardiorestes Gunnell, 1989 | |-- †M. elegans (Marsh, 1871) [Bathrodon typus Marsh, 1872; Mesacodon speciosus Marsh, 1872; Microsyops gracilis Leidy, 1872; Microsyops speciosus Marsh, 1872; Microsyops typus Marsh, 1872; Microsyops verus Leidy, 1872; Palaeacodon verus Leidy, 1872] | |-- †M. knightensis Gazin, 1952 | |-- †M. kratos Stock, 1938 | |-- †M. latidens (Cope, 1882) [Cynodontomys latidens Cope, 1882; Notharctus cingulatus Loomis, 1906; Notharctus palmidens Loomis, 1906] | `-- †M. scottianus (Cope, 1881) [Cynodontomys scottianus Cope, 1881] `--+-- †Megadelphus lundeliusi (White, 1952) Gunnell, 1989 [Cynodontomys lundeliusi; Microsyops lundeliusi] `-- †Craseops sylvestris Stock, 1932
After Gunnell, 2012:<==oPlesiadapiformes |-- †Purgatorius `--+-- †Palaechtha `--+-- †Palenochtha `--+--o †Micromomyidae | |-- †Tinimomys | `-- †Micromomys `--+-- †Choctawius `--+-- †Navajovius `--+-- †Niptomomys `--+-- †Nanomomys `--+--+-- †Bartelsia | `-- †Uintasorex `--+-- †Alveojunctus `-- †Picromomys |
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. - Gazin, C. L., 1976: Mammalian faunal zones of the Bridger Middle Eocene.
–Smithsonian Contributions to Paleobiology: No. 26, pp. iv-25 - Gunnell, G. F., 2012: New Uintasoricine (?Primates, Plesiadapiformes) from the Earliest Bridgerian, Latest Early Eocene of Wyoming.
–Journal of Paleontology: Vol. 86, #6, pp. 973-978 [doi: 10.1666/12-022R.1] - Hooker, J. J., Russell, D. E. & Phélizon, A., 1999: A new family of Plesiadapiformes (Mammalia) from the old world Lower Paleocene.
–Palaeontology: Vol. 42, #3, pp. 377-407 - McKenna, M. C. & Bell, S. K., eds., 1997: Classification of mammals; above the species level.
–Columbia University Press, New York, 1997. - 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 - 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