Arthropods of Burgess Shale type from the Middle Cambrian of Bohemia (Czech Republic)
Bulletin of Geosciences, volume 77, issue 3;
pages: 167 - 182;
Received 4 April 2002;
Accepted in revised form 29 April 2002;
Phyllocarida and incertae sedis,
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Rare non-trilobite arthropods, mostly with affinities with the Burgess Shale fauna, are described from the Middle Cambrian Jince Formation of the Barrandian area, Central Bohemia (Czech Republic): Tuzoia
sp., another large Tuzoia-
like arthropod (probably a new genus), Proboscicaris hospes
sp. n., Helmetia? fastigata
sp. n., and Forfexicaris?
sp. The status of Pilocystites primitius
Barrande, 1887, formerly ranged with echinoderms but here recognized as a Tuzoia
fragment, is discussed. Most of described arthropods (except Forfexicaris?
sp.) are thought to be nektobenthic animals of a shallow-water environment, possibly tolerant to some salinity fluctuations. Relationships, particularly to North American faunas, indicate open migration possibilities between Laurentia and peri-Gondwana regions during the Middle Cambrian.