<p><strong>Fig. 7.11.</strong>&nbsp;(<strong>C</strong>) Fossilized <em>Paradoxides</em> trilobite, a diverse group of marine arthropods that went extinct at the end of the Paleozoic era.</p>

Fig. 7.11. (C) Fossilized Paradoxides trilobite, a diverse group of marine arthropods that went extinct at the end of the Paleozoic era.

Image courtesy of Mike Peel, Wikimedia Commons