Authors Year Title
Korn 1997 The Palaeozoic ammonoids of the South Portuguese Zone.
Memórias do Instituto geológico e Mineiro 33: 1-131, 69 text-figs., 16 pls., Lisboa.
Kumpera & Lang 1975 Goniatitová fauna v kulmu Drahanské vysociny (moravskoslezska zona Ceskeho masívu). - [Goniatite Fauna of the Kulm of the Drahany Plateau, with short summary in English].
Casopis Slezskeho Muzea, Ser.A, 24-1975: 11-32, fig.1-2, pl.1-4; Opava.
Liang & Wang 1991 Carboniferous cephalopods of Xinjiang.
Paleontologica Sinica, n.ser.B, 180: 1-171, fig.1-104, pl.1-40; Nanjing.
Moore & Hodson 1958 Goniatites from the Upper Viséan shales of County Leitrim, Eire.
Liverpool and Manchester geological Journal, 2 (1); 86-105, fig.1-21, pl.3-10; Liverpool.