ostracodermi[Français]

nom
1 : extinct group of armored jawless vertebrates; taxonomy is not clear
2 : extinct fish-like jawless vertebrate having a heavily armored body; of the Paleozoic
3 : extinct fish-like jawless vertebrate having a heavily armored body; of the Paleozoic
4 : extinct fish-like jawless vertebrate having a heavily armored body; of the Paleozoic
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