After de Muizon & Cifelli, 2000, and Alroy, 2002-

<==o †Bulbulodentata Archibald, 1998 [Condylartha sensu McKenna & Bell, 1997]
   |?- †Abdounodus hamdii Gheerbrant & Sudre, in Gheerbrant, Sudre, Iarochene & Moumni, 2001
   |-- †Apheliscidae Matthew, 1918 sensu Zack et al., 2005
   |?-o †Tricuspiodontidae [subfamily to Hyopsodontidae?]
   |  |-- †Paratricuspiodon
   |  `-- †Tricuspiodon [Conaspidotherium, Plesiphenacodus]
   `--+-- †Periptychidae
      `--+-- †Hyopsodontidae Lydekker, 1889 [paraphyletic]
         `-- †Panameriungulata de Muizon, & Cifelli, 2000

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