Several lineages of extinct ____ were jawless fishes with bony plates and scales and three brain regions (forebrain, midbrain, and hindbrain).

Name: Several lineages of extinct ____ were jawless fishes with bony plates and scales and three brain regions (forebrain, midbrain, and hindbrain).
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Question

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Ostracoderms were indeed jawless fishes characterized by bony armor plates and scales, and like all vertebrates, they had a brain divided into three regions: the forebrain, midbrain, and hindbrain.

Several Lineages of Extinct ____ Were Jawless Fishes with Bony