Trilobita - Ptychopariida - Marjumiidae

Alternative combination: Ptychoparia penfieldi

Belongs to Modocia according to C. E. Resser 1936

Sister taxa: Modocia arctica, Modocia comforti, Modocia integella, Modocia kohli, Modocia nevadensis, Modocia obscura, Modocia oweni, Modocia whiteleyi, Armonia elongata

Type specimen: USNM 35321

Ecology: fast-moving low-level epifaunal carnivore

Distribution: there are no occurrences of Modocia penfieldi in the database

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Specimen images are retrieved through the ePANDDA API.