This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.
M. Ehiro, 2005 - Middle Permian ammonoids from the Kamiyasse-Imo district in the southern Kitakami Massif, northeast Japan - Paleontological Research (9), 1-14 (journal article, English)
T. B. Leonova, 2002 - Permian ammonoids: classification and phylogeny - Paleontological Journal (36), 1-114 (journal article, English)
J. J. Sepkoski, Jr., 2002 - A compendium of fossil marine animal genera - Bulletins of American Paleontology (363), 1-560 (serial monograph, English)
D. Z. Yang, 1992 - New materials of Late Permian ammonoids from southeastern Hubei - Acta Palaeontologica Sinica (31), 595-604 (journal article, Chinese)
Z. Zhou, 1985 - Several problems on the Early Permian ammonoids from South China - Palaeontologia Cathayana (2), 179-209 (journal article, English)
Z. G. Zheng, 1984 - Some Permian ammonoids from Hunan and northern Guangdong - Acta Palaeontologica Sinica (23), 185-195 (journal article, Chinese)
Y. D. Zakharov, 1983 - Ammonoidea - Evolution of the latest Permian biota: Dzhulfian and Dorashamian regional stages in the USSR (), 1-200 (book/book chapter, Russian)
E. T. Tozer, 1981 - Triassic Ammonoidea: Classification, evolution and relationship with Permian and Jurassic Forms - The Ammonoidea: The evolution classification, mode of life and geological usefulness of a major fossil group (), 66-100 (book/book chapter, English)
J. K. Zhao, 1977 - The Permian ammonoids from Zhejiang and Jiangxi - Acta Palaeontologica Sinica (16), 217-252 (journal article, Chinese)
G. H. Xu, 1977 - Cephalopoda - Palaeontological Atlas of South-Central China (2), 537-582 (book/book chapter, Chinese)
H. Termier, 1977 - Paléontologie des Invertébrés, in Monographie paléontologique des affleurements permiens du Djebel Tebaga (Sud Tunisien) - Palaeontographica Abteilung A (156), 25-99 (journal article, French)
C. Spinosa, 1975 - The Xenodiscidae, Permian ceratitoid ammonoids - Journal of Paleontology (49), 239-283 (journal article, English)
A. K. Miller, 1957 - Permian ammonoids from Tunisia - Journal of Paleontology (31), 705-712 (journal article, English)
A. K. Miller, 1944 - Permian cephalopods, Part IV of Geology and paleontology of the Permian area northwest of Las Delicias, southeastern Coahulia, Mexico - Geological Society of America Special Paper (52), 71-127 (serial monograph, English)
A. K. Miller, 1940 - Permian ammonoids of the Guadalupe Mountain region and adjacent area - Geological Society of America Special Paper (26), 1-242 (serial monograph, English)
F. B. Plummer, 1937 - Upper Paleozoic ammonites in Texas - The University of Texas Bulletin (3701), 1-516 (journal article, English)
E. Böse, 1919 - The Permo-Carboniferous ammonoids of the Glass Mountains, west Texas, and their stratigraphic significance - Texas Bureau of Economic Geology Bulletin (1762), 1-241 (serial monograph, English)
G. H. Girty, 1909 - The Guadalupian fauna - United States Geological Survey Professional Paper (58), 1-651 (serial monograph, English)
G. G. Gemmellaro, 1888 - La Fauna dei Calcari Con Fusulina della Valle del Fiume Sosio nella Provincia di Palermo, Appendice - Giornale di Scienze Naturali e Economiche (20), 1-26 (journal article, Italian)
G. G. Gemmellaro, 1887 - La Fauna dei Calcari con Fusulina della Valle del Fiume Sosio nella Provincia di Palermo, Fasc. 1 - Ammonoidea - Giornale di Scienze Naturali e Economiche (19), 1-106 (book/book chapter, Italian)