Authors Year Title
Clarke 1899a The Naples  fauna (fauna with Manticoceras intumescens) in Western New York.
New York State Museum Annual Report, 50: 31-161, fig.1-106, pl.1-9; Albany.
Clausen 1969 Oberdevonische Cephalopoden aus dem  Rheinischen  Schiefergebirge. II. Gephuroceratidae,Beloceratidae.
Palaeontographica Abt. A, 132: 95-178, fig.1-23, tab.1-11, pl.22-26; Stuttgart.
House & Kirchgasser 1993 Devonian goniatite biostratigraphy and timing of facies movements in the Frasnian of eastern North America.
In: Hailwood,E.A. & Kidd,R.B. (eds.), High Resolution Stratigraphy; Geological Society Special Publications, 70: 267-292, fig.1-13;
Miller 1938 Devonian ammonoids of America.
Special Papers, Geological Society of America, 14: 1-262, fig.1-41, pl.1-39; Baltimore.
Petter 1959 Goniatites dévoniennes du Sahara.
Publ. Serv. Carte géol. Algérie, n.s., Paléont., 2: 1-313, fig.1-58, pl.1-26; Alger.