Václav Petr

Isolated ossicles of the family Eospondylidae Spencer et Wright, 1966, in the Lower Devonian of Bohemia (Czech Republic) and correlation of the systematic position of eospondylid brittlestars (Echinodermata: Ophiuroidea: Oegophiurida)

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Plasiacystis mobilis, gen. et sp. n., a strange „carpoid“ (Echinodermata, ?Homoiostelea: Soluta) in the Bohemian Ordovician (Czech Republic)

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The genus Pygmaeocrinus BOUŠKA, 1947 (Crinoidea, Inadunata) in the Devonian of the Barrandian Area (Czech Republic)

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Camouflage and mimicry in fossils. 1: General part

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