Radoceras
Introduction  '''''Radoceras''''' is an extinct genus of prehistoric nautiloids from the Paleozoic included in the order Discosorida
References *  Paleobiology db -Radoceras* Sepkoski, J.J. Jr. 2002.A compendium of fossil marine animal genera. D.J. Jablonski & M.L. Foote (eds.). ''Bulletins of American Paleontology'' 363: 1–560.