Cephalopoda - Goniatitida - Cyclolobidae
Parent taxon: Cycloloboidea according to Z. R. Zhou 2017
See also Bogoslovskaya 1990, Furnish et al. 2009, Korn 2006 and Leonova 2002
Sister taxon: Vidrioceratidae
Subtaxa: Changhsingoceras Cyclolobinae Cyclolobus Demarezites Kufengoceratinae Mexicoceras Newellites Tongluceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Permian of Armenia (1 collection), Australia (1), Azerbaijan (1), Canada (2: British Columbia), China (43), Greenland (5), India (10), Indonesia (5), Iran (3), Iraq (1), Italy (4), Japan (12), Madagascar (2), Mexico (21), Oman (5), Pakistan (7), the Russian Federation (7), Tajikistan (1), Tunisia (2), United States (62: California, Idaho, Texas)
Total: 195 collections including 234 occurrences