Keywords

#clarkoceras

Clarkoceras

Extinct genus of molluscs

Clarkoceras is a genus of breviconic ellesmerocerid cephalopods, one of only two genera known to have crossed from the Late Cambrian, Trempealeauan, into the Early Ordovician, Gasconadian. ; the other being Ectenolites.

Wed 12th

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Clarkoceras Eburoceras Plectronoceratoidea Ellesmeroceratidae Ellesmerocerida List of prehistoric nautiloid genera List of the prehistoric life of Missouri Gasconadian Stage List of the Paleozoic life of New York (state) List of the prehistoric life of Virginia
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