Rhynchonellata - Orthida - Hesperonomiidae

Alternative combination: Protorthis porcias

Full reference: C. D. Walcott. 1924. Cambrian and Ozarkian Brachiopoda, Ozarkian Cephalopods and Notostraca. Smithsonian Miscellaneous Collections 67:477-554

Belongs to Hesperonomiella according to E. O. Ulrich and G. A. Cooper 1936

See also Walcott 1924

Sister taxa: Hesperonomiella arcuata, Hesperonomiella uzunbulakensis

Ecology: stationary epifaunal suspension feeder

Distribution: found only at 16q. 3.2 km up Sinclair Canyon from Radium Hot Springs (Ordovician of British Columbia)

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Specimen images are retrieved through the ePANDDA API.