†family Trematoceratidae Zakharov 1996 (mollusk)
Parent taxon: Pseudorthocerida according to A. Pohle and C. Klug 2024
Sister taxa: Pseudorthoceratidae, Spyroceratidae
Subtaxa: Paratrematoceras Phatthalungoceras Pseudotemperoceras Trematoceras Zhuravlevia
Type: Trematoceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of the Russian Federation (1 collection)
• Triassic of Afghanistan (2), Austria (16), Bosnia and Herzegovina (5), China (7), Hungary (4), India (3), Italy (13), Japan (4), Kazakhstan (8), Nepal (1), Romania (9), the Russian Federation (16), Switzerland (17), Türkiye (1), United States (18: Idaho, Nevada), Vietnam (1)
Total: 126 collections including 140 occurrences