kristin14
kristin14 kristin14
  • 24-02-2017
  • Biology
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what did placoderms look like?

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Аноним Аноним
  • 24-02-2017
Placoderms had heavy armour that covered their head and thorax. The rest of the body was covered with small bony scales or was without dental armour.
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prettygirl6816 prettygirl6816
  • 24-02-2017
a fish with a  beak  looks like a shark 

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