Biology:Olcostephanidae

Short description: Extinct family of molluscs

Olcostephanidae Temporal range: from Jurassic to Cretaceous, 150.8–125.45 Ma PreЄ Є O S D C P T J K Pg N
Fossil of Olcostephanus astierianus from France , on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Superfamily:	†Perisphinctoidea
Family:	†Olcostephanidae Haug, 1910

Olcostephanidae is an extinct ammonoid cephalopod family belonging to the superfamily Perisphinctoidea. These fast-moving nektonic carnivores lived from the Jurassic to the Cretaceous period.

Genera

• Bihenduloceras
• Olcostephanus Neumayr, 1875
• Saynoceras
• Subastieria Spath, 1923
• Taraisites Canta-Chapa, 1966
• Valanginites Sayn, 1910

Distribution

Fossils of species within this genus have been found in the Cretaceous sediments of Antarctica, Argentina, Austria, Chile, Colombia, Czech Republic, Czechoslovakia, France, Hungary, Italy, Mexico, Morocco, Peru, Poland, Portugal, Romania, Slovakia, South Africa, Spain, Russia, United States, as well as in the Jurassic of Argentina and Mexico.

References

Wikidata ☰ Q17264489 entry