Authors Year Title
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 & Liu 1987 New material of Carboniferous ammonoids from Xizang and Xinjiang.
Acta Paleontologica Sinica, 26 (6): 735-745, fig.1-11, pl.1-3; Beijing.
Liang & Zhu 1988 Early Carboniferous cephalopods of Baoshan, Yunnan.
Acta Paleontologica Sinica, 27 (3): 288-302, fig.1-18, pl.1-4; Beijing.
Librovitch 1940 Ammonoidea iz kamennougol'nykh otlozhenii Severnogo Kazakhstana.
Paleontologiia SSSR, 4 (9,1): 1-395, fig.1-78, pl.1-25; Moskva.
Nicolaus 1963 Zur Stratigraphie und Fauna der crenistria-Zone im Kulm des Rheinischen Schiefergebirges.
Beihefte zum Geologischen Jahrbuch, 53: 1-246, fig.1-32, tab.1-15, pl.1-22; Hannover.
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).
Weyer 1972a Trilobiten und Ammonoideen aus der Entogonites nasutus-Zone (Unterkarbon) des Büchenberg-Sattels (Elbingeröder Komplex, Harz) (Teil 1).
Geologie, 21 (2): 166-184, fig.1-14; Berlin.