A new Cambrian arthropod, Emeraldella brutoni, from Utah

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Issue Date
2011-09-29Author
Stein, Martin
Church, Stephen B.
Robison, Richard A.
Type
Article
Article Version
Scholarly/refereed, publisher version
Is part of series
Paleontological Contributions;3
Metadata
Show full item recordAbstract
Emeraldella is a rare arthropod of relatively large body size that belongs with the trilobite-like arthropods, Artiopoda. E. brutoni n. sp. from the Wheeler Formation of west-central Utah is the second species described and marks the first confirmed occurrence of Emeraldella outside the Burgess Shale of British Columbia. An articulated, flagelliform telson, similar to that of the Burgess Shale taxon Molaria, is recognized in Emeraldella. Evidence for the presence of lamellae on the exopods of Molaria is presented, supporting affinity of that taxon with Artiopoda. A close relationship between Emeraldella and Molaria is tentatively suggested, based on the morphology of tergites and telson.
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