arthrodira (0 synonym found)

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Definition of arthrodira:

(N) : (Greek for "jointed neck") an order of extinct armored, jawed fishes of the class Placodermi that flourished in the Devonian period before their sudden extinction, surviving for about 50 million years and penetrating most marine ecological niches.

Definition of arthrodira:

(N) : (Greek for "jointed neck") an order of extinct armored, jawed fishes of the class Placodermi that flourished in the Devonian period before their sudden extinction, surviving for about 50 million years and penetrating most marine ecological niches.

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