Trigonocercella
| Trigonocercella Temporal range: Early Arenig
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|---|---|
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita |
| Order: | †Asaphida |
| Family: | †Asaphidae |
| Genus: | † Hintze, 1952 |
| Species | |
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Trigonocercella 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,[1] a faunal stage which lasted from approximately 478 to 471 million years ago.[1]
References
- ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 364: 560. Retrieved 2008-01-12.