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
Prokoenenia wheeleri (Rucker, 1901) (Palpigradi: Prokoeneniidae) n/a, figs 82(2a–f), Prokoenenia wheeleri (Rucker)
Palpigradi Thorell, 1888 116–117, (as Palpigradida), Palpigradi
Eukoeneniidae Petrunkevitch, 1955 (Palpigradi) 117–118, Eukoeneniidae
Eukoenenia mirabilis (Grassi and Calandruccio, 1885) (Palpigradi: Eukoeneniidae) 118, figs 82(1a–b), Eukoenenia mirabilis (Grassi and Calandruccio)
Eukoenenia Börner, 1901 (Palpigradi: Eukoeneniidae) 118, Eukoenenia Börner