Diagram showing the location of the <a href="//commons.wikimedia.org/w/index.php?title=Cephalon&amp;action=edit&amp;redlink=1" class="new" title="Cephalon (page does not exist)">cephalon</a>, thorax and pygidium of a <a href="//commons.wikimedia.org/wiki/Trilobite" class="mw-redirect" title="Trilobite">trilobite</a>. Diagram courtesy of Sam Gon III <a rel="nofollow" class="external free" href="http://www.trilobites.info">http://www.trilobites.info</a><br><br>The trilobite body is divided into three major sections, a cephalon with eyes, mouthparts and sensory organs such as <a href="//commons.wikimedia.org/w/index.php?title=Antennae&amp;action=edit&amp;redlink=1" class="new" title="Antennae (page does not exist)">antennae</a>, a <a href="//commons.wikimedia.org/w/index.php?title=Thorax&amp;action=edit&amp;redlink=1" class="new" title="Thorax (page does not exist)">thorax</a> of multiple similar segments (that in some species allowed enrollment), and a <a href="//commons.wikimedia.org/w/index.php?title=Pygidium&amp;action=edit&amp;redlink=1" class="new" title="Pygidium (page does not exist)">pygidium</a>, or tail section.
Sam Gon III
Attribution
<a rel="nofollow" class="external free" href="http://www.trilobites.info">http://www.trilobites.info</a>