From Wikipedia, the free encyclopedia
Semicyclocephalus | |
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Fossil
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Scientific classification | |
Kingdom: | |
Phylum: | |
Class: | |
Order: | |
Family: | |
Genus: | Semicyclocephalus
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Semicyclocephalus 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
[edit]- ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 364: 560. Retrieved 2008-01-12.
Semicyclocephalus |
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This Ptychopariida-related article is a stub. You can help Wikipedia by expanding it. |
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