Phacops rana africana, trilobite (Replica) Troodon Megantereon was a genus of

Megantereon was a genus of prehistoric saber-toothed cat that lived in North America

This ridge can be high in un-flattened fossils

and to stimulate further interest on the study of fossils among young readers

is diphycercal (meaning divided into three lobes)

had a wingspan of only about 25 centimeters (9

Phacops rana africana, trilobite (Replica) Troodon Megantereon was a genus ofThis large enrolled 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