Trilobites

by: Walter B. Myers/Novapix
Reference: t-glb99-00048
Date: 2014-09-24

Trilobites of the genus Phacops scurry across the sandy bottom of a Silurian sea 436 million years ago. Also in this image are branching sponges from the genus Vauxia.
Phacops is a marine arthropod of the class Trilobita. It is characterized by a rounded body with a globose head. The Phacops in this image are about six inches long.

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