Echinodermata

Cryptocrinitidae Bassler, 1938

Selection of related publications
Rozhnov, S. V., Fedorov, P. V. 2001. A New Cryptocrinid Genus (Eocrinoidea, Echinodermata) from the Bioherm-related Volkhov Facies (Late Arenigian, Ordovician), Leningrad Region. Paleontologicheski Zhurnal 35, 6, 606-613.
Bockelie, J. F. 1981. The Middle Ordovician of the Oslo Region, Norway: 30. The eocrinoid genera Cryptocrinites, Rhipidocystis and Bockia. Norsk Geologisk Tidsskrift 61, 2, 123-147.
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I.
Pander, C. H. 1830. Beiträge zur Geognosie des Russischen Reiches.