Alternative spelling: Dimorphocerataceae
Full reference: A. Hyatt. 1884. Genera of fossil cephalopods. Proceedings of the Boston Society of Natural History 22:253-338
Parent taxon: Goniatitina according to W. M. Furnish et al. 2009
See also Korn 2006 and Titus 2000
Sister taxa: Adrianitoidea, Agathiceratoidea, Cycloloboidea, Gastrioceratoidea, Girtyocerataceae, Goniatitidae, Goniatitoidea, Gonioloboceratoidea, Marathonitoidea, Neodimorphoceratoidea, Neoglyphioceratoidea, Neoicoceratoidea, Nomismoceratoidea, Pericycloidea, Popanoceratoidea, Schistoceratoidea, Shumarditoidea, Somoholitoidea, Thalassoceratoidea
Subtaxa: Anthracoceratidae Berkhoceratidae Dimorphoceratidae Eogonioloboceratidae
Distribution:
• Chokierian of Kazakhstan (1 collection), the Russian Federation (1), the United Kingdom (1)
• Namurian of the United Kingdom (1)
• Carboniferous of China (1), the Czech Republic (2), France (1), Kazakhstan (40), Libya (1), Morocco (11), the Russian Federation (14), Tajikistan (2), Ukraine (1), the United Kingdom (87), United States (52: Arkansas, California, Illinois, Missouri, Nevada, Oklahoma, Utah), Uzbekistan (9)
Total: 225 collections including 318 occurrences