FAMILY                      Palaeobuthidae Kjellesvig-Waering, 1986:135  [Fossil]
GENUS                              Palaeobuthus Petrunkevitch, 1913:33  [type is distinctusFossil]
                                   [=Mazoniscorpio Wills, 1960:290] [type is mazonensis; syn. Kjellesvig-Waering 1986:140]
                                   [=Paleobuthus Francke, 1985:11] [misspelling]
SPECIES                                 Palaeobuthus distinctus Petrunkevitch, 1913:53  [Fossil]
                                        [=Mazoniscorpio mazonensis Wills, 1960:290*u.Carb.] [Illinois ]