†subfamily Placitinae Wang and He 1976 (ceratite)
Cephalopoda - Ceratitida - Gymnitidae
Parent taxon: Gymnitidae according to E. T. Tozer 1994
Sister taxa: Constrigymnites, Costigymnites, Eogymnites, Epigymnites, Gymnites, Gymnitinae, Japonitinae, Kiparisovia, Parapinacoceras, Paraplacites, Phyllytoceras, Protoplatytes, Tropigymnites, Xiphogymnites
Subtaxa: Paragymnites Placites
Type: Placites
Ecology: nektonic carnivore
Distribution:
• Triassic of Austria (16 collections), Bosnia and Herzegovina (1), Canada (10: British Columbia), China (1), Hungary (2), India (3), Indonesia (2), Nepal (2), Oman (1), Peru (1), the Russian Federation (14), Slovenia (1), Tajikistan (3), Ukraine (1), United States (7: Alaska, California, Nevada)
Total: 65 collections including 77 occurrences