Olenellus
chiefensis and Olenellus gilberti
(Palmer
1998)
Trilobite
Order Redlichiida, Family Olenellidae
Geological
Time: Lower Cambrian
Size: The
two Olenellus chiefensis are 1 5/16” and 11/16” in length.
The Olenellus gilbert is 2” in length including the tail spine.
The larger plate is 11 ½ x 6 ¼” The smaller plate
is 10 ¾ x 6 ¼”
Fossil Site:
C- Shale, Combined Metals Member, Pioche Shale Formation, Lincoln County,
Nevada
Fossil Code:
PFT651
Price: Sold
 Description:
There is a lot going on between these two plates of Pioche Shale.
The larger plate has two positive specimens. Both are Olenellus
chiefensis. Specifically, the light colored one on the upper
portion of the plate, and the smaller rust colored incomplete
one going off the side of the lower right hand side of the plate.
The large negative Olenellus gilberti is lower and to the left
of the upper O. chiefensis. On the smaller plate, the O. gilberti
is the positive; its cephalon is unfortunately going off the
side of the plate. Surrounding the trilobites is a purple hash
of sponge spines and body parts (Choia?). Because of the incompleteness
of two of the trilobites, I’m pricing this at a quite affordable
price. It’s an impressive colorful fossil display of a
complex Upper Lower Cambrian death assemblage.
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