Trilobites

Trilbites were a now-extinct type of arthropods related to horseshoe crabs. They lived during the paleozoic era from the Cambrian period through the Ordovician, Silurian, Devonian and Permian periods. They left us beautiful fossils some of which can be complete including their antennae.

Both Morocco and Ohio are famous for their trilobite fossils. In fact, the trilobite is the state fossil of Ohio, Wisconsin, and Pennsylvania.