Understanding Evolution

Trilobites: Excellent exoskeletons

For starters, letís take a look at the trilobites. These extinct armored arthropods have a body built from a cephalon, thorax, and pygidium, a body divided into three lobes, and one pair of antennae.



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Understanding Evolution © 2015 by The University of California Museum of Paleontology, Berkeley, and the Regents of the University of California