Cephalopoda - Ammonitida - Acanthoceratidae
Alternative spelling: Calycoceras (Eucalycoceras)
Parent taxon: Acanthoceratinae according to M. L. Guendouz et al. 2022
See also Cobban 1988, Kennedy 1994, Kennedy et al. 1996, Kennedy and Simmons 1991, Matsumoto 1959 and Sepkoski 2002
Sister taxa: Acanthoceras, Acompsoceras, Alzadites, Benueites, Calycoceras, Conlinoceras, Cunningtoniceras, Kastanoceras, Kennediella, Kunnamiceras, Microsulcatoceras, Nebraskites, Neocardioceras, Nigericeras, Paraconlinoceras, Plesiacanthoceratoides, Prohauericeras, Protacanthoceras, Pseudocalycoceras, Pseudovascoceras, Quitmaniceras, Sumitomoceras, Tarrantoceras, Thomelites, Watinoceras
Subtaxa: Eucalycoceras (Proeucalycoceras) Eucalycoceras collignoni Eucalycoceras denizoti Eucalycoceras diabloense Eucalycoceras gothicum Eucalycoceras pentagonum Eucalycoceras shastense Eucalycoceras templetonense
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Algeria (2 collections), Antarctica (2), Brazil (1), France (4), India (6), Tunisia (1), the United Kingdom (1), United States (17: Arizona, California, Colorado, New Mexico, South Dakota, Wyoming)
Total: 34 collections including 36 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.