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09.05.2016 15:10 -
Encyclopedia Largest Prehistoric Animals Vol.1 Vertebrates part12 Fishes - Placoderms
Placoderms (Placodermi)
Placoderms are arguably the most diverse groups of the early jawed fishes. They first appeared in the Early Silurian and diversified dramatically during the Devonian, but became extinct at the end of that p...
Placoderms are arguably the most diverse groups of the early jawed fishes. They first appeared in the Early Silurian and diversified dramatically during the Devonian, but became extinct at the end of that p...
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