†Periomma cilles Walcott 1917 (trilobite)
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Alternative combination: Ptychoparia cilles
Full reference: C. D. Walcott. 1917. The Albertella fauna in British Columbia and Montana. Smithsonian Miscellaneous Collections 67(2):9-59
Belongs to Periomma according to C. Lochman 1947
See also Resser 1937 and Walcott 1917
Sister taxon: Periomma leuka
Type specimen: Its type locality is Walcott Loc. 63d. Ptarmigan Peak, which is in a Delamaran carbonate limestone in the Ptarmigan Formation of Canada.
Ecology: fast-moving low-level epifaunal carnivore
Distribution: found only at Walcott Loc. 63d. Ptarmigan Peak
Specimen images are retrieved through the ePANDDA API.
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