| Grinnellaspis Temporal range: Early Arenig | |
|---|---|
| Conservation status | |
| Fossil | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Trilobita |
| Order: | Proetida |
| 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, a faunal stage which lasted from approximately 478 to 471 million years ago.
References
- ^ 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.
| Taxon identifiers | |
|---|---|
| Grinnellaspis | |
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