Biology:Quadragnostus
From HandWiki
| Quadragnostus | |
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| Scientific classification | |
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| Family: | Metagnostidae
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| Genus: | Quadragnostus Howell, 1966
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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
Wikidata ☰ Q7268301 entry
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