†subfamily Thalassoceratinae Hyatt 1900 (ammonite)
Cephalopoda - Ammonoida - Thalassoceratidae
Parent taxon: Thalassoceratidae according to W. M. Furnish et al. 2009
See also Leonova 2002
Sister taxa: Aristoceras, Aristoceratinae, Gleboceratinae, Prothalassoceras
Subtaxa: Aristoceratoides Eothalassoceras Epithalassoceras Thalassoceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Permian of Australia (3 collections), Canada (1: Yukon), China (1), Italy (3), Japan (1), Kazakhstan (10), Mexico (1), the Russian Federation (10), Tajikistan (14), United States (2: Texas)
• Carboniferous of United States (2: Oklahoma, Texas)
Total: 48 collections including 50 occurrences