Olenellus
gilberti (Meek 1874)
Trilobite
Order Redlichiida, Family Olenellidae
Geologic
Time: Lower Cambrian
Size: 25
mm
Fossil Site:
C- Shale, Combined Metals Member, Pioche Shale Formation, Lincoln County,
Nevada
Description:
A beautifully preserved specimen of this wide spread species that
is found in Nevada and California. 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, making them quite attractive to collectors. Most
are only found as a preserved cephalon, making those from the famous
Pioche Shale highly desirable.
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