Journal of

GEOsciences

  (Formerly Journal of the Czech Geological Society)

Original Paper

Ivo Chlupáč

Pterygotid eurypterids (Arthropoda, Chelicerata) in the Silurian and Devonian of Bohemia

Journal of the Czech Geological Society, volume 39 (1994), issue 2-3, 147 - 162

Representatives of the family Pterygotidae Clarke et Ruedemann, 1912 from the Ludlovian, Přídolian and Lochkovian strata of the Barrandian area, central Bohemia (Czech Republic) are reviewed and discussed: Acutiramus bohemicus (Barrande, 1872), A. perneri sp. n., A. ? nobilis (Barrande, 1872), Pterygotus barrandei Semper, 1898, P. kopaninensis Barrande, 1872 and doubtful species P. mediocris Barrande, 1872 and P.? blahai Semper, 1898. Pterygotids show their maximum development in strata of Přídolian age and they tend to be concentrated in offshore dark platy limestone facies with anoxic bottom influences. They are constituents of marine faunas and exhibit the same environmental dependence as the coeval phyllocarid crustaceans of the fam. Ceratiocarididae.