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

<==o †Oxyclaenidae
   |-- †Carcinodon aquilonius Russell, 1974
   |--o †Desmatoclaenus
   |  |-- †D. dianae
   |  `--+-- †D. protogonioides
   |     `--+-- †D. hermaeus
   |        `-- †D. mearae
   |--o †Prothryptacodon
   |  |-- †P. hilli
   |  `--+-- †P. furens
   |     `-- †P. ambiguus
   |-- †Zhujegale
   |-- †Astigale
   |--+?- †Triisodontidae
   |  `--o †Oxyclaenus
   |     |-- †O. corax
   |     |-- †O. cuspidatus
   |     |-- †O. simplex
   |     `-- †O. subbituminus
   |-- †Prolatidens
   |-- †Princetonia yalensis
   |-- †Petrolemus
   |-- †Khashanagale
   |--+-- †Lantianius
   |  `?- †Arctostylopidae
   `--+?- †Loxolophidae [sensu Alroy, 2002]
      `--o †Chriacus Cope, 1883b [Tricentes, Metachriacus, Spanoxyodon, Lipodectes]
         |-- †C. badgleyi
         |-- †C. gallinae
         |-- †C. punitor
         |-- †C. subtrigonus
         |-- †C. truncatus
         `--+-- †C. calenancus
            |-- †C. pelvidens
            `--+-- †C. pearcei
               `--+-- †C. baldwini
                  |-- †C. oconostotae Van Valen, 1978
                  `-- †C. orthogonius Russell, 1929 [Thryptacodon orthogonius (Russell, 1929) sensu Scott, Fox & Youzwyshyn, 2002]

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