Ampyx priscus, Ordovician trilobite fossil. Trilobites were arthropods that fed as they crawled on the seabed. They lived between 500 and 300 million years ago and are now extinct. This specimen dates from the Early to Middle Ordovician, and was found in the Arenig Series, in the Upper Fezouata Formation, Ait Zolli, Draa Valley, Morocco. It is a complete individual with all three cephalic spines attached. It has no eyes, so it was blind. The backward projecting spines can be straight or curved showing flexibility. The perfect preservation suggests rapid burial. This specimen is 5 centimetres long.
November 15th, 2019
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