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†subfamily Olcostephaninae Haug 1910 (ammonite)

Cephalopoda - Ammonoidea - Olcostephanidae

PaleoDB taxon number: 131155

Synonyms: Capeloitinae Cantú-Chapa 2009 (no. 385372), Garcitinae Cantú-Chapa 2012 (no. 385373), Provalanginitinae Fatml 1972 (no. 132975), Saynoceratinae Cantú-Chapa 2012 (no. 385374), Taraisitinae Cantú-Chapa 1966 (no. 132974)

Parent taxon: Olcostephanidae according to B. Pandey and D. B. Pathak 2017

Sister taxa: Garcites, Mexicanoceras, Spiticeratinae

Subtaxa: Baronnites, Ceratotuberculus, Olcostephanus, Santafecites, Saynoceras, Valanginites

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Type: Olcostephanus

Ecology: fast-moving nektonic carnivore