†family Triainoceratidae Hyatt 1884 (ammonite)
Cephalopoda - Agoniatitida - Triainoceratidae
Synonyms: Sandbergeroceratidae Miller 1938, Sandbergeroceratinae Miller 1938
Full reference: A. Hyatt. 1884. Genera of fossil cephalopods. Proceedings of the Boston Society of Natural History 22:253-338
Parent taxon: Pharcicerataceae according to D. Korn 2006
See also Arkell et al. 1957 and Korn and Klug 2002
Sister taxa: Maenioceratidae, Petteroceratidae, Pharciceratidae
Subtaxa: Altayites Sandbergeroceras Schindewolfoceras Triainoceras Wellsites
Type: Triainoceras
Ecology: fast-moving nektonic carnivore
Distribution:
• Devonian of Kazakhstan (1 collection), the Russian Federation (1), United States (8: New York)
Total: 10 collections including 11 occurrences