Taxa included

Petrunkevitch, A. (1955a). Arachnida. In: Moore, R.C. (ed.) Treatise on invertebrate paleontology. P, Arthropoda University of Kansas Press, Lawrence 2: 42–162.

Taxon
Obisium rathkii C.L. Koch and Berendt, 1854 (Pseudoscorpiones: Cheliferidae) n/a, fig. 49(1), Neobisium rathkii (C.L. Koch and Berendt)
Oligochernes bachofeni Beier, 1937 (Pseudoscorpiones: Chernetidae) n/a, fig. 50(2), Oligochernes bachofeni
Cheiridium hartmanni (Menge, 1854) (Pseudoscorpiones: Cheiridiidae) n/a, fig. 50(1), Cheiridium hartmanni (Menge)
Chelignathus kochii Menge, 1854 (Pseudoscorpiones: Chthoniidae) n/a, fig. 49(2), Heterolophus kochii (Menge)
Pseudogarypus hemprichii (C.L. Koch and Berendt, 1854) (Pseudoscorpiones: Pseudogarypidae) n/a, fig. 49(3), Pseudogarypus hemprichii (C.L. Koch and Berendt)
Dichela berendtii Menge, 1854 (Pseudoscorpiones: Cheliferidae) n/a, fig. 49(4), Oligochelifer berendtii (Menge)
Pseudoscorpiones de Geer, 1778 79–80, (as Pseudoscorpionida), Pseudoscorpiones de Geer
Chthonius C.L. Koch, 1843 (Pseudoscorpiones: Chthoniidae) 80, Chthonius
Pseudoscorpiones de Geer, 1778 80, (as Chthoniina), Chthoniinea
Chthoniidae Daday, 1889 (Pseudoscorpiones) 80, Chthoniidae Daday
Heterolophus Tömösváry, 1884 (Pseudoscorpiones: Chthoniidae) 81, Heterolophus
Chthoniidae Daday, 1889 (Pseudoscorpiones) 81, Dithidae Chamberlin
Pseudoscorpiones de Geer, 1778 81, (as Neobisiina), Neobisiinea
Neobisium Chamberlin, 1930 (Pseudoscorpiones: Neobisiidae) 81, Neobisium
Olpiidae Banks, 1895 (Pseudoscorpiones) 81, Olpiidae Banks
Neobisiidae Chamberlin, 1930 (Pseudoscorpiones) 81, Neobisiidae
Cheiridiidae Hansen, 1894 (Pseudoscorpiones) 82, Cheiridiidae Hansen
Garypidae Simon, 1879 (Pseudoscorpiones) 82, Garypidae Simon
Chernetidae Menge, 1855 (Pseudoscorpiones) 82, Chernetidae
Cheliferidae Risso, 1827 (Pseudoscorpiones) 82, Cheliferidae
Pseudoscorpiones de Geer, 1778 82, (as Cheliferina), Cheliferinea
Pseudogarypidae Chamberlin, 1923 (Pseudoscorpiones) 82, Pseudogarypidae Chamberlin