Stephanoceratoidea, formerly Stephanocerataceae, is a superfamily of middle- upper Jurassic ammonoid cephalopods within the order Ammonitida containing...

families combined into superfamilies. Some like the Hildoceratoidea and Stephanoceratoidea are restricted to the Jurassic. Others like the Hoplitoidea and Acanthoceratoidea...

Jurassic. Superfamilies from the Middle and Upper Jurassic include the Stephanoceratoidea, Perisphinctoidea, and Haploceratoidea; the Perisphinctoidea and Haploceratoidea...

Phylum: Mollusca Class: Cephalopoda Subclass: Ammonoidea Order: Ammonitida Superfamily: Stephanoceratoidea Family: Stephanoceratidae Genus: Garantiana...

Quenstedtoceras, included in the superfamily Stephanocerataceae, now revised to Stephanoceratoidea, is first of the subfamily Cardioceratinae, derived from Cadoceras...

smooth depression running along the rim. Kosmoceras belongs to the Stephanoceratoidea and is the type genus for the Family Kosmoceratidae and for the subfamily...

Skirroceras macrum is a Stephanoceratacean (ammonite) species belonging to the family Stephanoceratidae. These fast-moving nektonic carnivores lived during...

Cadomites is an extinct ammonite genus from the superfamily Stephanoceratoidea that lived during the Middle Jurassic (upper Bajocian – lower Callovian)...

Lamberticeras is an extinct ammonite genus belonging to the family Cardioceratidae. These fast-moving nektonic carnivores lived during the Jurassic period...

Cardioceras is an extinct ammonite genus belonging to the family Cardioceratidae. These fast-moving nektonic carnivores lived during the Jurassic period...

Phylum: Mollusca Class: Cephalopoda Subclass: Ammonoidea Order: Ammonitida Superfamily: Stephanoceratoidea Family: Cardioceratidae Genus: Cranocephalites...

Cadoceras is an extinct ammonite genus belonging to the Cardioceratidae that lived during the Jurassic period from the late Bajocian to the early Callovian...

Macrocephalites is a genus of the stephanoceratoid ammonite family Macrocephalitidae, diagnostic of the Callovian stage of the Middle Jurassic. Three subgenera...

Class: Cephalopoda Subclass: Ammonoidea Order: Ammonitida Superfamily: Stephanoceratoidea Family: Macrocephalitidae Genus: Indocephalites Spath, 1926...

family Stephanoceratidae, true ammonites, which is contained in the Stephanoceratoidea. It is probably synonymous with the better known Garantiana Hlawiceras...

Phylum: Mollusca Class: Cephalopoda Subclass: Ammonoidea Order: Ammonitida Superfamily: Stephanoceratoidea Family: Spiroceratidae Genus: Parastrenoceras...

a subfamily in the Eoderoceratoidean family, Polyorphitidae. The Stephanoceratoidea, Perisphinctoidea, and Haploceratoidea have their source in the Hammatoceratidae...

Subclass: Ammonoidea Order: Ammonitida Suborder: Ammonitina Superfamily: Stephanoceratoidea Family: Thomboceratidae Genus: Ermoceras Species Ermoceras deserti...

family of marine invertebrate animals belonging to the superfamily Stephanoceratoidea, order Ammonitida. The Macrocephalitidae is one of the 11 families...

Skirroceras is a Stephanoceratoidean (ammonite) genus belonging to the family Stephanoceratidae. These fast-swimming carnivores lived during the Jurassic...

family Stephanoceratidae, which is part of the ammonitid superfamily Stephanoceratoidea, that lived during the early Middle Jurassic. Phaulostephanus is a...

Binneyitinae was added by Donovan et al, 1981, transferred from the Stephanoceratoidea. D.T Donavan, J.H. Callomon, and M.K Howarth. 1981. Classification...

from the lower Callovian (upper Middle Jurassic) included in the Stephanoceratoidea. Inner whorls are finely ribbed and have a flattened or grooved venter...

Kosmermoceras is an extinct genus from a well-known class of fossil cephalopods, the ammonites. It lived during the Jurassic Period, which lasted from...

Kumatostephanus is an extinct genus from a well-known class of fossil cephalopods, the ammonites. It lived during the Jurassic Period, which lasted from...

the ammonoid family Sphaeroceratidae, a member of the superfamily Stephanoceratoidea, that lived during middle of the Jurassic Period. Labtrinthoceras...

family Otoitidae which makes up part of the ammonite superfamily Stephanoceratoidea. Docidoceras has a broad, finely ribbed, evolute shell with a depressed...

(1957) in the Treatise wherein the Pachyceridae is included in the Stephanoceratoidea, derived from the Tulitidae and giving rise to the Mayaitidae. Genera...

Subcollina is a genus of evolute to serpenticonic stephanoceratoidean ammonites from the Middle Jurassic (Baj) of Mexico, placed in the family Spiroceratidae...

Otoitidae, a family which makes up part of the ammonitid superfamily, Stephanoceratoidea. Frogdenites has an evolute globular shell with a deep umbilicus and...