Authors	Year	Title
Hall	1875	Descriptions of new species of Goniatitidae. With a list of previously described species. New York State Cab. Nat. Hist., Annual Report, 27: 132-136; Albany.
Hall	1879	Descriptions of the Gasteropoda, Pteropoda and Cephalopoda of the Upper Helderberg, Hamilton, Portage and Chemung Groups. Paleontology of New York, 5 (2): 1-492, pl.1-113; Albany.
Miller	1938	Devonian ammonoids of America. Special Papers, Geological Society of America, 14: 1-262, fig.1-41, pl.1-39; Baltimore.