Enrolled Paciphacops & Kainops Trilobites - Oklahoma

This is a pair of enrolled phacopid trilobites from the Haragan Formation of Oklahoma. One appears to be Kainops raymondi and the other Paciphacops cambelli. The most obvious difference between the two species is the number of eye facets. Both trilobites were surface finds and thus have a bit of weathering. They have been remounted onto a piece of rock whose base has been cut flat for display.

Trilobites were a very diverse group of extinct marine arthropods. They first appeared in the fossil record in the Early Cambrian (521 million years ago) and went extinct during the Permian mass extinction (250 million years ago). They were one of the most successful of the early animals on our planet: over 25,000 species have been described, filling nearly every evolutionary niche. Due in large part to their hard exoskeletons (shells), they left an excellent fossil record.
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DETAILS
SPECIES
Kainops raymondi & Paciphacops cambelli
LOCATION
Clarita, Oklahoma
FORMATION
Haragan Formation
SIZE
Each about .7" long (if outstretched)
SUB CATEGORY
ITEM
#95924
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