Alternative spelling: Cyclolobaceae
Parent taxon: Goniatitina according to Z. R. Zhou 2017
See also Bogoslovskaya 1990, Furnish et al. 2009, Korn 2006, Leonova 1989 and Leonova 2002
Sister taxa: Adrianitoidea, Agathiceratoidea, Dimorphoceratoidea, Gastrioceratoidea, Girtyocerataceae, Goniatitidae, Goniatitoidea, Gonioloboceratoidea, Marathonitoidea, Neodimorphoceratoidea, Neoglyphioceratoidea, Neoicoceratoidea, Nomismoceratoidea, Pericycloidea, Popanoceratoidea, Schistoceratoidea, Shumarditoidea, Somoholitoidea, Thalassoceratoidea
Subtaxa: Cyclolobidae Vidrioceratidae
Ecology: fast-moving nektonic carnivore
Distribution:
• Permian of Afghanistan (2 collections), Armenia (1), Australia (1), Azerbaijan (3), Canada (5: British Columbia, Nunavut, Yukon), China (59), Greenland (5), India (11), Indonesia (6), Iran (3), Iraq (1), Italy (8), Japan (22), Kazakhstan (9), Madagascar (2), Malaysia (1), Mexico (30), Oman (8), Pakistan (9), the Russian Federation (20), Tajikistan (19), Thailand (3), Timor-Leste (1), Tunisia (5), Ukraine (2), United States (84: California, Idaho, Texas), Venezuela (1)
• Carboniferous of Kazakhstan (1), the Russian Federation (5), United States (5: Kansas, Texas)
Total: 332 collections including 443 occurrences