Authors Year Title
Böhmers 1936 Bau und Struktur von Schale und Sipho bei permischen Ammonoidea.
1-125, fig.1-67, pl.1-2; Apeldoorn.
Haniel 1915 Die Cephalopoden der Dyas von Timor.
In: Wanner,J.: Paläontologie von Timor, 3,6: 1-123, fig.1-38, pl.1-11; Stuttgart.
Miller & Unklesbay 1943 The siphuncle in Late Paleozoic amonoids.
Journal of Paleontology, 17 (1): 1-25, fig.1-9, pl.1-5; Tulsa,Oklahoma.
Nassichuk 1975 Carboniferous ammonoids and stratigraphy in the Canadian Arctic Archipelago.
Bulletin of the Geological Survey of Canada, 237: 1-240, fig.1-57, tab.1-33, pl.1-18; Ottawa.
Ruzhencev 1949 Sistematika i evolyutsia semeystv Pronoritidae Frech i Medlicottiidae Karpinsky.
Trudy Palentologicheskogo Instituta Akademiya Nauk SSSR, 19: 1-206, fig.1-88, pl.1-17; Moskva.
Ruzhencev 1951 Nizhnepermskie ammonity yuzhnogo Urala. 1.Ammonity Sakmarskogo Yarusa.
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 33: 1-186, fig.1-62, phot.1-8, pl.1-15; Moskva.
Ruzhencev 1978 Assel'skie ammonoidei na Pamire.
Paleontologicheskiy Zhurnal, 1978 (1): 36-52, fig.1-13, pl.3,4; Moskva.
Smith 1927 Permian ammonoids of Timor.
Jaarboek van het Mijnwezen in Nederlandsch-Indie, 55 (for 1926): 1-58, pl.1-16; 'S Gravenhage.
Zhou 1987 First discovery of Asselian ammonoid fauna in China.
Acta Paleontologica Sinica, 26 (2): 130-148, fig.1-11, pl.1-6; Beijing.