Olenellus gilberti Trilobite from Pioche Shale

Olenellus gilberti

Class Trilobita, Trilobites Order Redlichiida, Suborder Olenellina; Superfamily Olenelloidea

Geological Time: Lower Cambrian

Size: 14 mm

Fossil Site: Pioche Shale, Lincoln County Nevada

Olenellus gilberti is one of many Ollenellid trilobites that occur in lower Cambrian horizons of the Pioche shale. The Ollenellids disappear in the strata just above these horizons, marking a transition from the lower Cambrian to the lower middle Cambrian.

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