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and its skeleton was almost identical to that of a modern bird
Early species had long
The curve of the shell is easy to see
like the Gulf Coast of the United States
a few of its skeletal elements are noteworthy
Psychopyge elegans, trilobite (Replica) Triceratops and its skeleton was almostIn addition to its many spines this very unusual trilobite also has a large spine or appendage on the front of the head. This specimen is from the Hamar Laghdad Formation, Alnif region, 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