Uncommon from red rock layer
Trilobites Order Ptychopariida, Suborder Ptychopariina, Superfamily Ptychparioidea, Family Ptychopariidae Geologic Age: Middle Cambrian Trilobite 25 mm long Wheeler Shale Formation, House Range, Millard County, Utah
Also see: US Trilobites
Trilobites Home Trilobites Site Map