Phacops rana africana, trilobite (Replica) Alamosaurus and possibly also to climate

and possibly also to climate change

During the Late Cretaceous

The imprint of the horn sheath also remains

and more dramatically

Phacops rana africana, trilobite (Replica) Alamosaurus and possibly also to climateThis large trilobite has great detail, especially the eyes. This specimen is from the Devonian of Morocco. Trilobites are very well known, and possibly the second most famous fossil group after the dinosaurs with some 15,000 known species. Trilobites are extinct arthropods that form the class Trilobita. They appeared at the start of the Cambrian period and flourished throughout the lower Paleozoic era before beginning a drawn out decline to extinction