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The animals had a canteen-shaped body armor
Brule Formation
that Sir Richard Owen came up with the word 'dinosauria' which means "terrible reptiles" to describe these spectacular fossil creatures which were being discovered
The life spans for these three lakes was: over 17 million years for Lake Uinta
Metacantina barrandea, trilobite (Replica) Alamosaurus The animals had a canteen-shapedThis 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