Stenorhachis

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Stenorhachis
Temporal range: Arenig
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Asaphida
Family: Asaphidae
Genus: Stenorhachis
Hintze & Jaanusson, 1956

Stenorhachis is an

Ordovician Period,[1] approximately 478 to 471 million years ago.[1]

References

  1. ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 364: 560. Archived from the original on September 5, 2006. Retrieved 2008-01-12.