Echinodermata

Perittocrinidae Abel, 1920

Selection of related publications
Rozhnov, S. V. 2007. New data on perittocrinids and hybocrinids (Crinoidea, Echinodermata) from the Middle Ordovician of the Baltic region. Annales de Paléontologie 93, 4, 261-276. DOI:10.1016/j.annpal.2007.09.004
Stukalina, G. A. 2000. Silurijskie krinoidei Sibirskoj platformy. Transactions of the Paleontological Institute (PIN) 278, 1-108.