Authors Year Title
Bogoslovsky 1969 Devonskie ammonoidei. I. Agoniatity.
Trudy paleont. Inst., 124: 1-341, fig.1-104, pl.1-29; Moskva.
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.
Frech 1902 Über devonische Ammoneen.
Beiträge zur Paläontologie Österreich-Ungarns und des Orients, 14: 27-112, fig.1-38, pl.2-5; Wien and Leipzig.
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.
Yatskov 1990b K sistematike semeistva Beloceratidae (Ammonoidea).
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 243: 36-51, 1 fig.; Moskva.