†superfamily Spiroceratoidea Hyatt 1900 (ammonite)

Cephalopoda - Ammonitida

Alternative spelling: Spirocerataceae

Parent taxon: Ammonitina according to M. R. Majidifard 2015

Sister taxa: Acanthoceratoidea, Aspidoceratoidea, Deshayesitoidea, Desmoceratoidea, Engonoceratoidea, Eoderoceratoidea, Hammatoceratoidea, Haploceratoidea, Hildoceratoidea, Hoplitoidea, Lytoceratoidea, Oppeliaceae, Perisphinctaceae, Perisphinctoidea, Psiloceratoidea, Pulchelliaceae, Sphaeroceratoidea, Stephanoceratoidea, Hamitaceae, Nannolytoceratidae, Crioceratitaceae, Protetragonitidae, Tetragonitoidea

Subtaxa: Spiroceratidae

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Type: Spiroceras

Ecology: fast-moving nektonic carnivore

Distribution:

• Jurassic of Chile (2 collections), France (1), Germany (2), Iran (1), Italy (1), Kenya (1), the Russian Federation (4), Saudi Arabia (2), Spain (1), Ukraine (1), United States (2: Wyoming )

Total: 18 collections including 23 occurrences

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