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a thorax of up to 30 segments
Our studies indicate that Aspidella includes a wide variety of preservational morphs varying from negative hypo reliefs with a raised rim and ridges radiating from a slit (Aspidella-type preservation)
Features skeletal structure and internal organs
Germany is one of the richest sites for understanding the living environment of the Eocene at about 49 million years ago
Psychopyge elegans, trilobite (Replica) Stegosaurus a thorax of up toIn 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
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