After Gentry, Parham, Ehret & Ebersole, 2018

Peritresius Leidy, 1856
        †Chelone Leidy, 1856
        †Peribresius [sic] Cope, in Cook, 1869 [lapsus calami]
        †Peritresius (Leidy, 1856) Cope, 1870
        Prochonias Cope, 1870
        †Taphrosphys Cope, 1870


        †Peritresius ornatus Leidy, 1856
            Chelone ornata Leidy, 1856
            Peribresius [sic] ornatus Cope, in Cook, 1869 [lapsus calami]
            Peritresius ornatus Cope, 1869
            Prochonias nodosus Cope, 1870
            Taphrosophys nodosus Cope, 1870
            Peritresius ornatus = ?Taphrosphys nodosus Hay, 1908
            Peritresias [sic] ornatus Miller, 1955
            Peritresius ornatus Baird, 1964
            Peritresius ornatus Bard, 1964; Gentry, Parham, Ehret & Ebersole, 2018
            
        †Peritresius martini Gentry, Parham, Ehret & Ebersole, 2018

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