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- Otoitidae es una familia de Stephanoceratoidea, del suborden Amonitina de principios del Jurásico Medio que comienzan como cadiconos pero ser más planuales con la edad; derivado de (Hildoceratoidea), probablemente a través de a modo de . Las conchas comienzan en forma de barril con verticilos deprimidos, bordes exteriores anchos y umbilicos profundos en forma de cráter (cadicónicos), pero se comprimen y los bordes exteriores se vuelven bruscamente redondeados, planulados. Puede ser pesado y tuberculado en los hombros umbilicales y puede dividirse a lo largo de los flancos antes de cruzar el borde exterior -el venter- ininterrumpidamente. Otoitidae es la familia ancestral de Stephanoceratoidea y se conoce solo desde un intervalo de tiempo relativamente corto dentro de la etapa Bajociense al comienzo del Jurásico Medio y comienza con Docidoceras. Ellos dieron lugar, probablemente a través de variedades de Docidoceras, a Stephanoceratidae y , que a su vez dieron lugar a las diferentes ramas filogenéticas dentro de Stephanoceratoidea. (es)
- Otoidtidae: stephanoceratoid ammonitina from the early Middle Jurassic that begin as cadicones but become more planualte with age; derived from the (Hildoceratoidea), probably through by way of Abbasites. Shells begin barrel shaped with depressed whorls, broad outer rims, and deep, crater-like umbilici—cadiconic—but become compressed, with the out rims becoming bluntly rounded—planulate. Ribbing is common; may be heavy and tuberculate on the umbilical shoulders and may divide along the flanks before crossing the outer rim -the venter- uninterrupted. The Otoitidae is the ancestral family of the Stephanoceratoidea and is known only from a relatively short interval of time within the Bajocian stage at the beginning the Middle Jurassic and begins with Docidoceras. They gave rise, probably through varieties of Docidoceras to the Stephanoceratidae and , which in turn gave rise to the different phylogenetic branches within the Stephanoceratoidea. (en)
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- 2244 (xsd:nonNegativeInteger)
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- *Docidoceras
*Emileia
*Otoites
*Parsemileites (en)
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- Otoitidae es una familia de Stephanoceratoidea, del suborden Amonitina de principios del Jurásico Medio que comienzan como cadiconos pero ser más planuales con la edad; derivado de (Hildoceratoidea), probablemente a través de a modo de . (es)
- Otoidtidae: stephanoceratoid ammonitina from the early Middle Jurassic that begin as cadicones but become more planualte with age; derived from the (Hildoceratoidea), probably through by way of Abbasites. Shells begin barrel shaped with depressed whorls, broad outer rims, and deep, crater-like umbilici—cadiconic—but become compressed, with the out rims becoming bluntly rounded—planulate. Ribbing is common; may be heavy and tuberculate on the umbilical shoulders and may divide along the flanks before crossing the outer rim -the venter- uninterrupted. (en)
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- Otoitidae (es)
- Otoitidae (en)
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