Cephalopoda - Ammonitida - Olcostephanidae
Synonyms: Capeloitinae Cantú-Chapa 2009, Garcitinae Cantú-Chapa 2012, Provalanginitinae Fatml 1972, Saynoceratinae Cantú-Chapa 2012, Taraisitinae Cantú-Chapa 1966
Parent taxon: Olcostephanidae according to J. R. Ovando-Figueroa et al. 2024
See also Aguirre-Urreta and Rawson 1999, Aguirre-Urreta and Rawson 2001, Arkadiev et al. 2000, Avram and Gradinaru 1993, Imlay and Jones 1970, Klein 2005, Lukeneder 2004, Mourgues et al. 2015, Pandey and Pathak 2017, Reboulet 1996, Vasicek 2002, Wright 1952 and Zell et al. 2015
Sister taxa: Garcites, Mexicanoceras, Spiticeratinae
Subtaxa: Baronnites Ceratotuberculus Holcostephanus Olcostephanus Parastieria Santafecites Saynoceras Valanginites
Ecology: fast-moving nektonic carnivore
Distribution:
• Cretaceous of Antarctica (1 collection), Argentina (63), Austria (6), Chile (17), Colombia (9), the Czech Republic (3), France (247), Georgia (1), Honduras (1), Hungary (13), India (2), Italy (24), Mexico (33), Morocco (38), Peru (1), Poland (10), Portugal (4), Romania (1), Slovakia (6), South Africa (2), Spain (40), Switzerland (1), Trinidad and Tobago (1), Tunisia (18), Ukraine (1), United States (10: California, Oregon, Washington)
• Jurassic of Argentina (1)
Total: 554 collections including 723 occurrences