Authors Year Title
Higgins, Wagner-Gentis & Wagner 1964 Basal Carboniferous Strata in Part of Northern León, NW. Spain: Stratigraphy, Conodont and Goniatite Faunas.
Bulletin de la Societé belge de Géologie, Paléontologie, Hydrologie, 72 (2): 205-249, fig.1-5, pl.1-5; Bruxelles.
Korn & Feist 2007 Early Carboniferous ammonoid faunas and stratigraphy of the Montagne Noire (France).
Fossil Record 10 (2) (2007): 99-124, 20 fig.
Kuzina & Lazarev 1994 Novye rannekamennougol'nye ammonoidei Mongolii. [New Early Carboniferous ammonoids from Mongolia].
Paleontologicheskii Zhurnal 28 (1A): 157-171, 5 text-figs., pl.7, Moskva.
Liang & Wang 1991 Carboniferous cephalopods of Xinjiang.
Paleontologica Sinica, n.ser.B, 180: 1-171, fig.1-104, pl.1-40; Nanjing.
Popov 1968 Vizeiskie ammonoidei cevernogo Tyan'-Shanya i ikh stratigraficheskoe zhachenie.
Akad. Nauk Kirgizkoy SSR, Inst. Geologii: 1-116, fig.1-22, pl.1-8; Frunze.
Riley 1996 Mid-Dinantian ammonoids from the Craven Basin, northwest England.
Special papers in Palaeontology, 53: 1-87, 8 pls., 51 text-figs., London (Palaeontological Association).