Trilobites

Trilobites are extinct arthropods (joint legged animals). Many people assume that the name comes from the three section of the trilobite (head (cephalon), body (thorax), and tail (pygidium) but in fact, the name is derived from the three longitudinally lobes (left, right and center). Most trilobites had a compound eye (similar to a fly) but some were blind. As trilobites grew, they shed their exoskeletons, just like the modern shrimp or lobster. Because of shedding, most trilobite fossils are found as sections of the head, body or tail. Complete intact trilobites are very rare and prized by collectors. Many of the trilobites pictured here are rare and difficult to find intact. The picture below is schematic of a trilobite.
Click on image to enlarge and see more details. On that page you can click on the image again for a full page view of the specimen.

Devonian Trilobites from Ontario, Canada


*Basidechenella*	*Crassiproetus*	*Phacops*	*Phacops*	*Greenops*	*Anikinops*

Ordovician Trilobites from Ontario, Canada


*Isotelus*	*Raymondites*	*Xylabion*	*Gabriceraurus*	*Gabriceraurus*	*Ceraurus*

*Isotelus*	*Ectenaspis*	*Ceraurinus*	*Isotelus*	*Calyptaulax*	*Hemiarges*

*Meadowtownella*	*Bumastoides*	*Nanilleanus*	*more to come*	*more to come*	*more to come*

Other Trilobites


*Paraceraurus*	*Hemerihodon*	*Dicranurus*	*Asaphicus*	*Arctinurus*	*Darwinus*

*Calymene*	*Psychopyge*	*Homotelus*	*Ampyxina*	*Asaphus*	*Asaphus*

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