Authors Year Title
Besairie 1936 Recherches géologiques à Madagascar. Première suite. La géologie du Nord-Ouest.
Mémoires de l'Académie Malgache, 21: 1-258, 16 figs., 3 tabs., 24 pls., 1 map, Tananarive.
Davis, Furnish & Glenister 1969 Mature Modification and Dimorphism in late Paleozoic Ammonoids.
In: Westermann,G.E.G:Sexual Dimorphism in Fossil Metazoa and Taxonomic Implications,Intern.Union Geol.Sci., A (1):101-110, 2 figs., pl.2-5, Stuttgart.
Furnish & Glenister 1970 Permian Ammonoid Cyclolobus from the Salt Range, West Pakistan in Kummel,B. & Teichert,C. (eds): Stratigraphic boundary problems: Permian and Triassic of West Pakistan.
University of Kansas Department of Geology Special Publication 4: 153-175, fig.1,2, tab.1,2, pl.1-4.
Spinosa, Furnish & Glenister 1975 The Xenodiscidae, Permian ceratitoid ammonoids.
Journal of Paleontology, 49 (2): 239-283, fig.1-22, tab.1-5, pl.1-8.
Vaillant-Couturier_Treat 1933 Paléontologie de Madagascar. XIX. Le Permo-Trias marin. [Vaillant-Couturier Treat, Ida].
Annales de Paléontologie, 22: 39-96, 17 figs., 3 pls., Paris.