Zacanthoides grabaui Trilobite
Trilobita Trilobites Order Corynexochida, Suborder Corynexochina, Superfamily Corynexochoidea, Family Zacanthoididae
Geological Time: Middle Cambrian
Fossil Site:
Langston Formation, Spence Shale Member, Miner's Hollow, Wellsville Mountains.
Box Elder County. Utah
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