Cephalopoda - Ammonitida - Olcostephanidae
Alternative spelling: Holcostephanus (Spiticeras)
Synonyms: Bihenduloceras, Somaliceras
Parent taxon: Spiticeratinae according to J. R. Ovando-Figueroa et al. 2024
See also Arkadiev et al. 2000, González-Arreola et al. 2017, Imlay and Jones 1970, Sepkoski 2002, Vašíček et al. 2023, Vašíček and Skupien 2013, Wright et al. 1996 and Zell et al. 2015
Sister taxa: Aspidostephanus, Cantianiceras, Groebericeras, Kilianiceras, Negreliceras, Proniceras, Umiaites
Subtaxa: Bihenduloceras gregoryi Holcostephanus (Spiticeras) obliquelobatus Spiticeras (Spiticeras) Spiticeras bilobatum Spiticeras blancheti Spiticeras correardi Spiticeras multiforme Spiticeras obliquenodosum Spiticeras orientale Spiticeras polytroptychum Spiticeras pseudogroteanum Spiticeras serpentinum Spiticeras tripartitum
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Antarctica (2 collections), Chile (2), the Czech Republic (2), Egypt (1), France (4), Hungary (13), India (2), Iran (2), Iraq (1), Italy (2), Mexico (4), Morocco (1), Serbia and Montenegro (1), Spain (20), Ukraine (6), United States (3: California, Oregon), Yemen (11)
• Jurassic to Cretaceous of Chile (5), Spain (1)
• Jurassic of Argentina (1), Chile (1), Hungary (1), India (6), United States (3: California), Yemen (2)
Total: 97 collections including 128 occurrences
Specimen images are retrieved through the ePANDDA API.
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