Authors Year Title
Frech 1897- Lethaea geognostica oder Beschreibung und Abbildung der für die Gebirgs-Formationen bezeichnendsten Versteinerungen. I. Theil. Lethaea palaeozoica. 2. Band.
35pls, 6maps, 551figs.; Stuttgart.
Gemmellaro 1887 La Fauna dei Calcari con Fusulina della valle del Fiume Sosio (nella Provincia di Palermo).
Giornale di scienze naturali ed economiche, 19: 1-106, pl.1-10; Palermo.
Greco 1935 La Fauna Permiana del Sosio conservata nei Musei di Pisa, di Firenze e di Padova.
Palaeont. Italica, 35 (n.S. 5): 101-190, pl.12-15; Siena.
Haug 1894 Les ammonites du Permien et du Trias. Remarques sur leur classification.
Bulletin de la Societé Géologique de France, 2. ser., 2: 385-412, fig.1-13; Paris.
Miller & Furnish 1940a Studies on Carboniferous ammonoids: parts 1-4.
Journal of Paleontology, 14: 356-377, fig.1-17, pl.45-49; Tulsa, Okla.
Miller & Furnish 1940c Permian ammonoids of the Guadalupe Mountain Region and adjacent areas.
Special Papers of the Geological Society of America, 26: 1-242, fig.1-59, pl.1-44; Baltimore.
Miller, Furnish & Clark 1957 Permian ammonoids from Western United States.
Journal of Paleontology, 31 (6): 1057-1068, fig.1-6, pl.133-134; Tulsa,Oklahoma.
Plummer & Scott 1937 Upper Paleozoic ammonites in Texas.
The geology of Texas, vol.3 pt.1, Bull. Texas. Univ., 3701: 1-516, fig.1-88, pl.1-41; Austin, Texas.
Ruzhencev 1950 Verkhnekamennougol'nye ammonity Urala.
Trudy Paleont. Inst., Akad. Nauk SSSR, 29: 1-220, fig.1-84, pl.1-15; Moskva.
Termier, Termier & Desparmet 1972 Les Ammonoides du Permien (Kubergandien) de Tezak (Afghanistan central). [Termier,H., Termier,G., Desparmet,R. & Montenat,C.]
Société géologique du Nord, Annales, 92: 105-115, 7 figs., pl.13-17, Lille.
Vasicek & Kullmann 1988 Eine Ammonoideen-Fauna vom Sosio-Typ (Guadalupian, Ober-Perm) aus Kurdistan (Irak).
Palaeontographica, Abt.A, 204 (1-3): 95-115, fig.1-5, pl.1-2; Stuttgart.
Vasicek 1988 Upper Permian Ammonoidea from Kurdistan, NE Iraq.
In: Wiedmann,J. & Kullmann,J. (eds.), Cephalopods - Present and Past, 577-591, 3 pls., 16 figs., Stuttgart.