Cephalopoda - Ammonitida - Acanthoceratidae
Parent taxon: Acanthoceratinae according to C. W. Wright et al. 1996
See also Cobban 1988, Cooper 1978, Kennedy et al. 1988, Kennedy and Cobban 1990 and Sepkoski 2002
Sister taxa: Acanthoceras, Acompsoceras, Alzadites, Benueites, Calycoceras, Conlinoceras, Cunningtoniceras, Eucalycoceras, Kastanoceras, Kennediella, Kunnamiceras, Microsulcatoceras, Nebraskites, Neocardioceras, Nigericeras, Paraconlinoceras, Plesiacanthoceratoides, Prohauericeras, Protacanthoceras, Pseudocalycoceras, Pseudovascoceras, Quitmaniceras, Sumitomoceras, Thomelites, Watinoceras
Subtaxa: Tarrantoceras cuspidum Tarrantoceras exile Tarrantoceras flexicostatum Tarrantoceras sellardsi
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Angola (1 collection), United States (25: Montana, New Mexico, South Dakota, Texas, Wyoming)
Total: 26 collections including 31 occurrences
Specimen images are retrieved through the ePANDDA API.
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