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Grinnellaspis

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Grinnellaspis
Temporal range: Early Arenig[1]
Fossil
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Trilobita
Genus:
Grinnellaspis

Grinnellaspis is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early part of the Arenig stage of the Ordovician Period,[1] a faunal stage which lasted from approximately 478 to 471 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. {{cite journal}}: Cite has empty unknown parameter: |coauthors= (help)
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