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 particularly well preserved specimen of Olenellus fowleri.
It has very good color and presence. All the spines and the delicate
opistothorax are preserved. There is some damage to the glabella.
The species has been recently described in 1998. It is one of the
rarer species found at this location. The 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, and most are only found as a preserved cephalon.
trilobite pictures to enlarge