Circulocrania

Circulocrania is an extinct genus of trilobites in the family Cyclopygidae. The genus lived during the later part of the Arenig stage of the Ordovician Period, approximately 478 to 471 million years ago.

CirculocraniaTemporal range:
Kingdom:Animalia
Phylum:Arthropoda
Clade:†Artiopoda
Class:†Trilobita
Order:†Asaphida
Family:†Cyclopygidae
Genus:†CirculocraniaFortey & Owens, 1987

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Circulocrania is an extinct genus of trilobites in the family Cyclopygidae. The genus lived during the later part of the Arenig stage of the Ordovician Period, approximately 478 to 471 million years ago.

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