After Buscalioni & Sanz, 1988, and Martin, Rabi & Csiki, 2010

<==o †Atoposauridae Broili, 1932? sensu Buscalioni & Sanz, 1988
   |--o †Atoposaurus von Meyer, 1850
   |  |-- †A. oberndorferi von Meyer, 1850
   |  `-- †A. jourdani von Meyer, 1851
   |?- †Brillanceausuchus babouriensis Michard, de Broin, Brunet & Hell 1990
   |?- †Hoplosuchus kayi Gilmore, 1926
   |?- †Karatausuchus sharovi Efimov, 1976
   |?- †Pachycheilosuchus trinquei Rogers, 2003
   |--+-- †Alligatorellus beaumonti Angela, 1988
   |  `--o †Alligatorium Gervais, 1871
   |     |-- †A. meyeri Gervais, 1871
   |     |-- †A. franconicum Ammon, 1906
   |     `-- †A. paintenense Kuhn, 1961
   `--+-- †Montsecosuchus deperati (Vidal, 1915) Buscalioni & Sanz, 1990
      `--o †Theriosuchus Owen 1879 sensu Martin, Rabi & Csiki, 2010
         |?- †T. ibericus Brinkmann, 1992; L.Jur. SWEu.
         |?- †T. grandinaris Lauprasert, Laojumpon, Saenphala, Cuny, Thirakhupt & Suteethorn, 2010; E.Cret. SEAs.
         |-- †T. sympiestodon Martin, Rabi & Csiki, 2010; L.Cret. CEu.
         `--+-- †T. guimarotae Schwarz & Salisbury, 2005; L.Jur. SWEu.
            `-- †T. pusillus Owen 1879 [incl.? Oweniasuchus minor Woodward, 1885]; L.Jur. NWEu.

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