Coccosteus

paleontology

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In arthrodire
…as the Middle Devonian genus Coccosteus, tended toward marine habitats. Coccosteans were less heavily armoured than Arctolepis, and the bony head and body shields were connected by a joint on each side allowing free head movement. They were predators and had bony jaws. Two toothplates were present on each side…
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