Emeraldella
| Emeraldella Temporal range: | |
|---|---|
| Emeraldella brocki | |
| Emeraldella brutoni | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| (unranked): | †Artiopoda |
| (unranked): | †Vicissicaudata |
| Genus: | †Emeraldella Walcott, 1912 |
| Type species | |
| Emeraldella brocki Walcott, 1912 | |
| Other species | |
|
Emeraldella brutoni Stein, Church & Robison, 2011 | |
Emeraldella is a genus of arthropod known from the Middle Cambrian of North America. The type species E. brocki was described in 1912 from the Burgess Shale. 21 specimens of Emeraldella are known from the Greater Phyllopod bed, where they comprise < 0.1% of the community. A re-study on the species was done in 2012. A second species E. brutoni is known from the Wheeler Shale, which was described in 2011. An additional specimen of E. brutoni was described in 2019, which revealed more of the anatomy. It has been placed as a basal member of the clade Vicissicaudata within Artiopoda, a group of arthropods containing trilobites and their relatives.
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