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About: Eburoceras     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:Species, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: ThingEukaryoteAnimalanimaleukaryotemolluscaspecies New Facet based on Instances of this Class

Eburoceras is an early nautiloid cephalopod from the Upper Yenchau and Wanwankau, Upper Cambrian Trempealeauan of China, assigned to the Ellesmeroceratidae. The shell of Eburoceras is long and narrow, curved in a broad arc of near constant curvature, interpreted as endogastric, assuming the small siphuncle on the inner margin to be ventral. Known for sure dorsal siphuncles do not appear until later in the Early Ordovician with the Trocholitidae, which if so would make it (Eburoceras) exogastric. Eburoceras is the most strongly curved of the Cambrian ellesmeroceratids.