Taxon - Links and literature
Prokop R. J., Petr V. (2002): Survey of echinoderms and a new ophiocistioid Branzoviella talpa gen. et sp. n. (Echinodermata, Ophiocistioidea) in the Lower Devonian, Lochkov Formation of the Barrandian area, Czech Republic, Bulletin of the Czech Geological Survey, Vol. 77, No. 3, 237–240 [as Pygmaeocrinus rotundus Prokop & Petr, 1997]
Prokop R. J., Petr V. (1997): The genus Pygmaeocrinus (Crinoidea, Inadunata) in the Devonian of the Barrandian area (Czech Republic), Acta Mus. Nat. Pragae, Ser. B, Hist. Nat., 53 (1-2): 1- 10. Praha [as Pygmaeocrinus rotundus Prokop & Petr, 1997]