Cephalopoda - Orthocerida - Orthoceratidae
Parent taxon: Orthoceratidae according to J. Y. Chen et al. 1981
See also Kröger and Isakar 2006 and Teichert et al. 1964
Sister taxa: Aethiosolen, Anaspyroceratinae, Chebbioceras, Ctenoceras, Infundibuloceras, Kopaninoceras, Merocycloceras, Michelinoceras, Michelinoceratinae, Orthoceras, Orthoceratinae, Orthocycloceras, Palorthoceras, Pleurorthoceras, Pojetoceras, Prohypogeophis, Prohypogeophis tunariensis, Pseudospyroceras, Striatocycloceras, Theoceras, Tibichoanoceras, Tienoceras
Subtaxa: Bohemites Euthyocycloceras Leurocycloceras Obliocycloceras Obliocycloceroides Xiaoxiangoceras
Type: Leurocycloceras
Ecology: nektonic carnivore
Distribution:
• Silurian of Canada (1: Ontario collection), China (2), Japan (1), the United Kingdom (7), United States (4: Wisconsin)
Total: 15 collections including 17 occurrences