Taxon - Odkazy a literatura
Cole S. R. (2017): Phylogeny and morphologic evolution of the Ordovician Camerata (Class Crinoidea, Phylum Echinodermata), Journal of Paleontology [jako Euptychocrinus skopaios Brower, 1994]
J. C. Brower (1994): Camerate crinoids from the Middle Ordovician (Galena Group, Dunleith Formation) of northern Iowa and southern Minnesota, Journal of Paleontology 68(3):570-599 [jako Euptychocrinus skopaios Brower, 1994]