After McKenna & Bell, 1997, and Kielan-Jaworowska, Cifelli & Luo, 2004

<==o †Morganucodontidae Kühne, 1958 sensu McKenna & Bell, 1997 [synonyms]
   |?- †Gondwanadon tapani Datta & Das, 1996
   |?- †Holwellconodon problematicus Lucas & Hunt, 1990? [not recognized by Kielan-Jaworowska, Cifelli & Luo, 2004]
   |?- †Indotherium pranhitai Yadagiri, 1984 [incl. Indozostrodon simpsoni Datta & Das, 2001 sensu Prasad & Manhas, 2002]
   |--o †Morganucodon Kühne, 1949 [Eozostrodon??]
   |  |-- †M. oehleri Rigney, 1963 [incl. M. heikuopengensis Young, 1978??; †Eozostrodon oehleri]
   |  |-- †M. peyeri Clemens, 1980
   |  |-- †M. heikuopengensis Young, 1978 [Eozostrodon heikuopengensis (Young, 1978)]
   |  `-- †M. watsoni Kühne, 1949 [†Eozostrodon watsoni]
   |-- †Eozostrodon parvus Parrington, 1941 [incl. E. problematicus] [Morganucodon parvus??]
   |-- †Helvetiodon schuetzi Clemens, 1980 [Helveticodon Tatarinov, 1985]
   `-- †Erythrotherium parringtoni Crompton, 1964

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