Authors Year Title
Furnish, Glenister & Kullmann 2009 Carboniferous and Permian Ammonoidea.(Goniatitida and Prolecanitida    ( Authors: W.M.Furnish, B.F. Glenister, Jürgen Kullmann and  Zhou  Zuren.)
Treatise on Invetebrate Paleontology,part L, Mollusca 4, Revised, volume 2, Carboniferous and Permian Ammonoidea,1-258, 139 fig., Lawrence, KS.
Hyatt 1884 Genera of fossil cephalopods.
Boston Society of Natural History, Proceedings, 22: 253-338 (253-272 publ.1883, 273-338 publ.1884); Boston, Mass.