Check-listy
* Výčet zemí nemusí být kompletní
Odkazy a literatura
[1] Prokop R. J., Petr V. (1990): Type Specimens of Fossils in the National Museum of Prague: Paleozoic Crinoidea, National Museum Prague [jako Ramacrinus brevis Le Menn et Prokop, 1980]
Prokop R. J., Petr V. (1990): Type Specimens of Fossils in the National Museum of Prague: Paleozoic Crinoidea, National Museum Prague [jako Ramacrinus brevis Le Menn et Prokop, 1980]