Etheridgaspis

Etheridgaspis; Temporal range: Arenig
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	† Artiopoda
Class:	† Trilobita
Order:	† Proetida
Family:	† Hystricuridae
Genus:	† Etheridgaspis ; Kobayashi 1940

Last updated November 14, 2025

Etheridgaspis is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Arenig stage of the Ordovician Period,^[1] approximately 478 to 471 million years ago. Fossils of the genus have been found exclusively in the Caroline Creek Formation of Australia.

References

1 2 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.

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[strata.ummp-1] 1 2 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.

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