†Cardioceras (Cawtoniceras) Buckman 1923 (ammonite)
Cephalopoda - Ammonitida - Cardioceratidae
Alternative spelling: Cawtoniceras
Parent taxon: Cardioceras according to R. Schlegelmilch 1994
See also Arkell et al. 1957 and Sepkoski 2002
Sister taxa: Cardioceras (Cardioceras), Cardioceras (Maltoniceras), Cardioceras (Pachycardioceras), Cardioceras (Plasmatoceras), Cardioceras (Scarburgiceras), Cardioceras (Scoticardioceras), Cardioceras (Subvertebriceras), Cardioceras (Vertebriceras)
Subtaxa: Cardioceras (Cawtoniceras) cawtonense Cardioceras (Cawtoniceras) tenuiserratum
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of France (6 collections), the Russian Federation (1), the United Kingdom (1)
Total: 8 collections each including a single occurrence