SINCLAIR STAMMERS / Fossil of a Trilobite (Olenellus / Olenellus gilberti Meek) from the Lower Cambrian period, Chisolm shale, Pioche formation, Half Moon mine, Pioche, Nevada, USA. Pete Lawrance collection
01290335
SINCLAIR STAMMERS / Fossil of a Trilobite (Olenellus / Olenellus gilberti Meek) from the Lower Cambrian period, Chisolm shale, Pioche formation, Half Moon mine, Pioche, Nevada, USA. Pete Lawrance collection
