Semiannuloceras

Semiannuloceras
Temporal range:
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: †Orthocerida
Family: †Baltoceratidae
Genus: †Semiannuloceras
Evans, 2005

Semiannuloceras is an extinct genus of actively mobile carnivorous cephalopod of the family Baltoceratidae that lived in what would be Europe during the Ordovician from 490–460 mya, existing for approximately 6 million years.

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