After Rose & Bown, 1982, and Bloch, Boyer, Gingerich & Gunnell, 2002

<==o †Paramomyidae Simpson, 1940
   |--o †Paromomys Gidley, 1923
   |  |-- †P. maturus
   |  `-- †P. depressidens
   `--+-- †Acidomomys hebeticus Bloch, Boyer, Gingerich & Gunnell, 2002
      `--+--o †Ignacius Matthew & Granger, 1921
         |  |-- †I. greybullianus
         |  |-- †I. frugivorus
         |  |-- †I. fremontensis
         |  |-- †I. mcgrewi
         |  `-- †I. clarkforkensis Bloch, Silcox, Boyer & Sargis, 2007
         `--+--o †Phenacolemur Matthew, 1915
            |  |-- †P. praecox
            |  |-- †P. simonsi
            |  |-- †P. pagai
            |  |-- †P. jepseni
            |  `-- †P. shifrae
            `--+-- †Elwynella oreas Rose & Bown, 1982
               `--o †Arcius Godinot, 1984
                  |-- †A. rougieri
                  |-- †A. fuscus
                  `-- †A. lapparenti

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