†Sidneyia Walcott 1911 (artiopod)
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Parent taxon: Vicissicaudata according to R. Lerosey-Aubril et al. 2017
See also Bambach et al. 2007, Briggs et al. 1994, Briggs et al. 2008 and Sepkoski 2002
Sister taxa: Aglaspidida, Carimersa, Cheloniellida, Emeraldella, Eozetetes, Kodymirus, Xenopoda
Subtaxa: Sidneyia sinica
Ecology: nektobenthic carnivore
Distribution:
• Solvan of Canada (1: British Columbia collection)
• Delamaran of Canada (22: British Columbia), United States (1: Utah)
• Cambrian of Canada (3: Brithish Columbia, British Columbia), United States (3: Pennsylvania, Utah)
Total: 30 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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