Full reference: A. H. King and D. H. Evans. 2019. High-level classification of the nautiloid cephalopods: a proposal for the revision of the Treatise Part K. Swiss Journal of Palaeontology 138:65-85
Parent taxon: Cephalopoda according to A. H. King and D. H. Evans 2019
Sister taxa: Actinoceratoidea, Akidocheilus, Ammonoidea, Anomalosaepiidae, Avramidiscus, Belosaepia, Burronoceras, Coleoidea, Dartoceras, Davidiceras, Desmoceras, Didymoceras, Ectocochlia, Ellesmerocerida, Endoceratoidea, Endocycloceratidae, Erlangericheilus, Gonatocheilus, Hadrocheilus, Irianoceras, Lamellaptychus, Leptocheilus, Mesoteuthoidea, Multiceratoidea, Nautilia, Nautiloidea, Ohioceratidae, Orthoceratoidea, Palaeoteuthis, Plectronoceratia, Plectronocerida, Rhyncholithes, Rhynchoteuthis, Robsonoceratidae, Scaptorrhynchus, Sichunoceras, Stemtonoceratidae, Teratoceroides, Tetrabranchiata, Tillicheilus, Werthenoceras, Yanhecerida
Subtaxa: Barrandeocerida
Ecology: fast-moving nektonic carnivore
Distribution:
• Devonian of United States (10: New York, Ohio collections)
• Niagaran of United States (1: Ohio)
• Silurian of Canada (2: Northwest Territories, Ontario), China (1), Czechia (9), Italy (2), the United Kingdom (1), United States (4: Wisconsin)
• Chazyan of United States (6: New York)
• Arenig of China (1)
• Ordovician of Canada (5: Manitoba, Nunavut, Quebec), China (3), Estonia (7), North Korea (1), Norway (4), the United Kingdom (1), United States (33: Illinois, Iowa, Wisconsin, Kentucky, Minnesota, New York, Ohio, Tennessee, Virginia)
• Canadian of United States (1: Colorado)
Total: 92 collections including 127 occurrences