Odkazy
Blastoidea - poupěnci
Fay R. O. (1962): Mespilocystites, an Ordovician coronate crinoid from Czechoslovakia
Oklahoma geol. Notes, 22, 156-161. Norman. Paul C. R. C. (1985): Ordovician and Silurian Coronates (Echinodermata) from Czechoslovakia
Geological Journal, vol. 20, 21-29 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