Osteostracan definitions

Osteostracan

1) Agnathan 2) Cephalaspid 3) Jawless fish 4) Jawless vertebrate
Found on https://www.crosswordclues.com/clue/osteostracan

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Osteostracan

1) Cephalaspid
Found on https://www.crosswordclues.com/clue/osteostracan

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osteostracan

[n] - extinct jawless fish of the Devonian with armored head
Found on http://www.webdictionary.co.uk/definition.php?query=osteostracan

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osteostracan

cephalaspid noun extinct jawless fish of the Devonian with armored head
Found on https://www.encyclo.co.uk/local/20974

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