Authors Year Title
House 1978 Devonian amonoids from the Appalachians and their bearing on international zonation and corelation.
Special Papers Paleontology, 21: 1-70, fig.1-12, pl.1-10; London.
Montesinos 1987 Anarcestina (Ammonoidea) del Devónico palentino (N. de España).
Bol. R. Soc. Española Hist. Nat. (Geol.), 82 (1-4): 113-123, fig.1-6, 1pl.;
Ruan 1981a Devonian and earliest Carboniferous Ammonoids from Guangxi and Guizhou.
Mem. Nanjing Inst. Geol. Paleont. Academia Sinica, 15: 1-152, fig.1-102, pl.1-33; Beijing.
Shen 1975 [Discovery of primitive ammonoids from Nandan of Guangxi and its stratigraphical significance.] [In Chinese].
Professional Papers of Stratigraphy and Paleontology, 1: 86-104, figs., pl.1-2; Peking.
Termier & Termier 1950 Paléontologie Marocaine. II. Invertébrés de l'ére Primaire. Fascicule III. Mollusques.
Service géologique Protect. Rep. franc. Maroc, Notes et Mém., 78: 1-246, pl.123-183; Paris.
Wissner & Norris 1991 Middle Devonian goniatites from the Dunedin and Besa River formations of northeastern British Columbia.
In: Contributions to Canadian Paleontology, Bulletin of the Geological Survey Canada 412: 45-79, fig.3.1-3.17, tab.3.1-3.2, pl.3.1-3.3;