Olenellus clarki California Trilobite

Name: Olenellus clarki (also called Paedumias clarki)

Class Trilobita (Trilobites), Order Redlichiida, Suborder Olenellina, Superfamily Olenelloidea, Family Olenellidae

Geologic Time: Lower Cambrian

Size: left trilobite - 23 mm; right trilobite - 75 mm

Fossil Site: Latham Shale, Marble Mountains, San Bernardino County, California

While Olenellus are quite rarely found with more than a cephalon, Ruin Wash in Nevada is a notable exception. This specimen is from a very old collection, and is from a locality that is no longer collectable. The specimen on the right has been professionally prepared to expose the many spnies.

This species was formerly known as Olenellus (Paedumias) clarki or (Paedumias) clarki. The reletively widespread species is also found in the lower Ogygopsis Faunule, Bonnia-Olenellus Biozone, Inyo-White Mountains, Eastern California.

Reference: Mount, JD (1980) Characteristics of Early Cambrian Faunas from Eastern San Bernardino County, California. Southern California Paleontological Society Special Publications, no. 2, p. 19-29.

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