After Rose & Bown, 1982, Beard & Houde, 1989, McKenna & Bell, 1997, and Alroy, 2002

<==o †Micromomyidae Szalay, 1974 [Micromomyini]
   |?-o †Dryomomys Bloch, Silcox, Boyer, & Sargis, 2007
   |  |-- †D. szalayi Bloch, Silcox, Boyer, & Sargis, 2007
   |  `-- †D. dulcifer Chester & Beard, 2012
   |--o †Tinimomys Szalay, 1974 [Tinimomyinae Beard & Houde, 1989 sensu McKenna & Bell, 1997]
   |  |-- †T. loomisi (Robinson, 1994) [Myrmekomomys loomisi Robinson, 1994]
   |  |-- †T. graybulliensis Szalay, 1974
   |  `-- †T. tribos Chester & Beard, 2012
   `==o †Micromomys Szalay, 1973 sensu lato
      |--o †Chalicomomys Beard & Houde, 1989
      |  |-- †C. antelucanus Beard & Houde, 1989 [Micromomys antelucanus (Beard & Houde, 1989)]
      |  `-- †C. willwoodensis (Rose & Bown, 1982) [Micromomys willwoodensis Rose & Bown, 1982]
      `--o †Micromomys Szalay, 1973 [Micromomyinae Szalay, 1974]
         |-- †M. silvercouleei Szalay, 1973
         |-- †M. vossae Krause, 1978
         `-- †M. fremdi Fox, 1984

After Beard & Houde, 1989

<==o †Micromomyidae Szalay, 1974 [Micromomyini]
   |?-o †Dryomomys Bloch, Silcox, Boyer, & Sargis, 2007
   |  |-- †D. szalayi Bloch, Silcox, Boyer, & Sargis, 2007
   |  `-- †D. dulcifer Chester & Beard, 2012
   |--o Micromomyina Beard & Houde, 1989
   |  `--o †Micromomys Szalay, 1973 [Micromomyinae Szalay, 1974]
   |     |-- †M. silvercouleei Szalay, 1973
   |     |-- †M. vossae Krause, 1978
   |     `-- †M. fremdi Fox, 1984
   `--o Tinimomyina Beard & Houde, 1989
      |--o †Chalicomomys Beard & Houde, 1989
      |  |-- †C. antelucanus Beard & Houde, 1989 [Micromomys antelucanus (Beard & Houde, 1989)]
      |  `-- †C. willwoodensis (Rose & Bown, 1982) [Micromomys willwoodensis Rose & Bown, 1982]
      `--o †Tinimomys Szalay, 1974 [Tinimomyinae Beard & Houde, 1989 sensu McKenna & Bell, 1997]
         |-- †T. loomisi (Robinson, 1994) [Myrmekomomys loomisi Robinson, 1994]
         |-- †T. graybulliensis Szalay, 1974
         `-- †T. tribos Chester & Beard, 2012

Reference(s):

  • Beard, K. C. & Houde, P., 1989: An unusual assemblage of diminutive plesiadapiforms (Mammalia: ?Primates) from the Early Eocene of Clark's Fork Basin, Wyoming.
    –Journal of Vertebrate Paleontology: Vol. 9, #4, pp. 388-399 [doi: 10.1080/02724634.1989.10011772]

Reference(s):