†Periomma Resser 1936 (trilobite)
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Parent taxon: Antagmidae according to P. A. Jell and J. M. Adrain 2002
See also Sepkoski 2002
Sister taxa: Antagmus, Bicella, Bilimbataia, Crassifimbra, Erzishania, Houmengia, Lermontoviella, Longshania, Mantoushania, Onchocephalina, Onchocephalus, Sombrerella, Xiangqianaspis, Xiaomajiella, Yuehsienszella
Subtaxa: Periomma cilles Periomma leuka
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Delamaran of Canada (1: Alberta collection)
• Cambrian of United States (1: Vermont)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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