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Geology of West Virginia
but large males could grow up to 2
a large non-amniote reptiliomorph (Diadectidae) that lived at the same time
Adult Ctenochasma had a bony crest along the skull
It has been found in every continent except Africa and South America
Isotelus iowensis, trilobite (Replica) Pteranodon Geology of West VirginiaThis is an enlarged replica of Isotelus iowensis based of a specimen from the Ordovician Trenton Group, Trenton Falls, New York. 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