Circulocrania

Circulocrania
Temporal range:
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Clade: †Artiopoda
Class: †Trilobita
Order: †Asaphida
Family: †Cyclopygidae
Genus: †
Fortey & Owens, 1987

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.[1]

References

  1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 364: 560. Archived from the original on 2006-09-05. Retrieved 2008-01-12.
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