Cephalopoda - Ceratitida - Gymnitidae
Parent taxon: Pinacoceratoidea according to A. Vörös 2018
See also Astakhova 1971, Fantini Sestini 1994, Fantini Sestini 1996, Kummel 1969, Tozer 1981 and Tozer 1994
Sister taxa: Carnitidae, Japonitidae, Klamathitidae, Pinacoceratidae, Ptychitidae, Sturiidae
Subtaxa: Constrigymnites Costigymnites Eogymnites Epigymnites Gymnites Gymnitinae Japonitinae Kiparisovia Parapinacoceras Paraplacites Phyllytoceras Placitinae Protoplatytes Tropigymnites Xiphogymnites
Ecology: nektonic carnivore
Distribution:
• Triassic of Afghanistan (3 collections), Albania (1), Austria (24), Bosnia and Herzegovina (10), Canada (36: Alberta, British Columbia), China (10), Croatia (1), Greece (5), Hungary (8), India (12), Indonesia (3), Iran (4), Italy (29), Japan (2), Nepal (4), New Zealand (2), Oman (1), Peru (1), Romania (4), the Russian Federation (24), Slovenia (1), Spain (5), Switzerland (2), Tajikistan (3), Thailand (1), Türkiye (14), Ukraine (2), United States (57: Alaska, California, Nevada), Vietnam (1)
Total: 270 collections including 354 occurrences