Penarosa

Penarosa
Temporal range: Cambrian[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Trilobita
Order:
Ptychopariida
Suborder:
Ptychopariina
Superfamily:
Ptychoparioidea
Family:
Nepeidae
Genus:
Penarosa

Penarosa is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Middle Cambrian (Ptychagnostus atavus Zone to Ptychagnostus punctuosus Zone),[1] approximately 505 to 500 million years ago.

References

  1. ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 364: 560. Retrieved 2008-01-12.


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