Taxa included

Beier, M. (1955g). Pseudoscorpione im baltischen Bernstein aus dem Geologischen Staatsinstitut in Hamburg. Mitteilungen aus dem Mineralogisch-Geologischen Staatsinstitut in Hamburg 24: 48–54.

Taxon
Chelignathus kochii Menge, 1854 (Pseudoscorpiones: Chthoniidae) 48, Chelignathus kochii
Neobisium (Neobisium) exstinctum Beier, 1955 (Pseudoscorpiones: Neobisiidae) 48–50, fig. 1, Neobisium exstinctum
Roncus succineus Beier, 1955 (Pseudoscorpiones: Neobisiidae) 50–51, fig. 2, Roncus succineus
Progonatemnus Beier, 1955 (Pseudoscorpiones: Atemnidae) 51–52, Progonatemnus
Cheiridium hartmanni (Menge, 1854) (Pseudoscorpiones: Cheiridiidae) 51, Cheiridium hartmanni (Menge)
Geogarypus macrodactylus Beier, 1937 (Pseudoscorpiones: Geogarypidae) 51, Geogarypus macrodactylus
Progonatemnus succineus Beier, 1955 (Pseudoscorpiones: Atemnidae) 52–53, fig. 3, Progonatemnus succineus
Electrochelifer balticus Beier, 1955 (Pseudoscorpiones: Cheliferidae) 53–54, fig. 4, Electrochelifer balticus
Beierowithius sieboldtii (Menge, 1854) (Pseudoscorpiones: Withiidae) 53, (as Oligowithius sieboldii [sic]), Oligowithius sieboldtii (Menge)