Cephalopoda - Ammonitida - Stephanoceratidae
Alternative spellings: Ammonites (Stephanoceras), Coeloceras (Stephanoceras), Stepheoceras
Synonym: Kreterostephanus Buckman 1927
Parent taxon: Stephanoceratinae according to J. Sandoval and G. E. G. Westermann 1986
See also Arkell 1952, Arkell et al. 1957, Crick 1894, Fantini Sestini 1975, Jeannet 1951, Sadki 1994 and Sepkoski 2002
Sister taxa: Duashnoceras, Normannites, Teloceras
Subtaxa: Stephanoceras (Perisphinctes) Stephanoceras (Skirroceras) Stephanoceras arabicum Stephanoceras arenosum Stephanoceras boulderense Stephanoceras chariense Stephanoceras chrysoolithicum Stephanoceras diadematum Stephanoceras dimerum Stephanoceras elephantinum Stephanoceras eucyclum Stephanoceras grantanum Stephanoceras magnumbilicatum Stephanoceras mixtecorum Stephanoceras opis Stephanoceras semilaeve Stephanoceras skidegatense Stephanoceras subcompressum Stephanoceras subtrapezinum Stephanoceras tumidum
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of Canada (2: British Columbia collections), Chile (6), Egypt (1), Mexico (3), Saudi Arabia (4), Spain (2), Tunisia (3), Ukraine (2), United States (4: Idaho, Oregon, Utah)
Total: 27 collections including 34 occurrences
Specimen images are retrieved through the ePANDDA API.
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