Cambrian Trilobite from Pioche Formation
Order Redlichiida, Suborder
Olenellina, Family Olenellidae
Time: Lower Cambrian
Site: Pioche Shale Formation, C- Shale, Combined Metals Member, Lincoln
is a well preserved specimen of a species that has been recently
described in 1998. The Olenellus genus is restricted to the early
Cambrian (540-520 million years ago), making them good index fossils.
They have a most distinctive large cephalon containing crescentic
eyes. Most are only found as a preserved cephalon.
trilobite pictures to enlarge