Name: Ptychagnostus
michaeli
Order Agnostida, Superfamily Agnostoidea, Family Ptychagnostida
Locality: near Modecia Flats, House Range, Millard Co., Utah
Stratigraphy: Marjum Formation., Middle Cambrian
Remarks: Photo:
courtesy Virtual
Fossil Museum Trilobites
Reference: Robison, R.A. 1984. Cambrian Agnostida of North America and Greenland; Part I, Ptychagnostidae. University of Kansas Paleontological Contributions, Paper 109:1-60.
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Western
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