Quadragnostus
Extinct genus of trilobites
Quadragnostus Temporal range: Cambrian[1] | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Trilobita |
Order: | Agnostida |
Family: | Metagnostidae |
Genus: | Quadragnostus Howell, 1966 |
Quadragnostus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Cambrian Period,[1] which lasted from approximately 539 to 485 million years ago.
References
- ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 364: 560.
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