Fossils - Deuterostomia - Chordata - Placodermi - Pterichthyodes - Devonian - Europe.

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Photo credit: © De Agostini / G. Cigolini / Alamy / Afripics
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Keywords: animal, chordata, close-, deuterostomia, devonian, extinct, fossil, fossils, frame, full, geology, gray, history, horizontal, paleontology, people, representation, rock, themes