misct TRILOBITE, Zacanthoides idahoensis, Cambrian, Spence Shale, Wellsville Mountains, Utah-Idaho, 8.5 x 7 cm plate | |
2 cm trilobite from Wellsville Mtns with long side spines. This location is not open for collecting and was mountainous and dangerous to collect at in the first place according to the Gunthers who did alot of collecting there for museums and universities. |