FAMILY                      Orthosterniincertae [Fossil]
GENUS                              Corniops Jeram, 1994a:542  [Fossil]
SPECIES                                 Corniops mapesii Jeram, 1994a:542 [StephanianFossil; u.Carb.; Kansas]
GENUS                              Palaeoburmesebuthus Lourenço, 2002:99  [type is Palaeoburmesebuthus grimaldiiFossil]
SPECIES                                 Palaeoburmesebuthus grimaldii Lourenço, 2002:99 [Fossil; Cret.; Myanmar]
GENUS                              Sinoscorpius Hong, 1983:19  [type is shandongensisFossil]
SPECIES                                 Sinoscorpius shandongensis Hong, 1983:19 [as shandongenseFossil; Mio.; China]
GENUS                              Uintascorpio Perry, 1985 [EoceneFossil]