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
Dichela berendtii Menge, 1854 (Pseudoscorpiones: Cheliferidae) n/a, fig. 49(4), Oligochelifer berendtii (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)
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)
Pseudoscorpiones de Geer, 1778 79–80, (as Pseudoscorpionida), Pseudoscorpiones de Geer
Pseudoscorpiones de Geer, 1778 80, (as Chthoniina), Chthoniinea
Chthoniidae Daday, 1889 (Pseudoscorpiones) 80, Chthoniidae Daday
Chthonius C.L. Koch, 1843 (Pseudoscorpiones: Chthoniidae) 80, Chthonius
Pseudoscorpiones de Geer, 1778 81, (as Neobisiina), Neobisiinea
Heterolophus Tömösváry, 1884 (Pseudoscorpiones: Chthoniidae) 81, Heterolophus
Neobisiidae Chamberlin, 1930 (Pseudoscorpiones) 81, Neobisiidae
Neobisium Chamberlin, 1930 (Pseudoscorpiones: Neobisiidae) 81, Neobisium
Olpiidae Banks, 1895 (Pseudoscorpiones) 81, Olpiidae Banks
Chthoniidae Daday, 1889 (Pseudoscorpiones) 81, Dithidae Chamberlin
Cheliferidae Risso, 1827 (Pseudoscorpiones) 82, Cheliferidae
Pseudoscorpiones de Geer, 1778 82, (as Cheliferina), Cheliferinea
Pseudogarypidae Chamberlin, 1923 (Pseudoscorpiones) 82, Pseudogarypidae Chamberlin
Chernetidae Menge, 1855 (Pseudoscorpiones) 82, Chernetidae
Garypidae Simon, 1879 (Pseudoscorpiones) 82, Garypidae Simon
Cheiridiidae Hansen, 1894 (Pseudoscorpiones) 82, Cheiridiidae Hansen