Cephalopoda - Goniatitida - Gastrioceratidae
Parent taxon: Gastrioceratoidea according to W. M. Furnish et al. 2009
See also Korn 2006, Ruzhentsev and Bogoslovskaya 1978 and Titus 1997
Sister taxa: Glaphyritidae, Homoceratidae, Reticuloceratidae
Subtaxa: Cancelloceras Chaerogastrioceras Gastrioceras Owenoceras
Type: Gastrioceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Permian of China (3 collections), Greece (1), India (1), Pakistan (1), United States (3: Idaho, Texas, Wyoming)
• Carboniferous of Canada (7: Nunavut), China (5), the Russian Federation (8), Ukraine (7), the United Kingdom (19), United States (66: Alaska, Arkansas, Kentucky, Missouri, Nevada, Oklahoma, Texas), Uzbekistan (8)
Total: 129 collections including 198 occurrences