archipterygium definition

  • noun:
    • A primitive fin, like this of Ceratodus.
    • The ancient as a type of fin, like this of Ceratodus.
    • The archetypal type or primitive variety of the skeleton associated with limbs of vertebrates.
    • A primitive fin, that way of Ceratodus.
    • The ancient type of fin, like that of Ceratodus.
    • The archetypal type or ancient particular the skeleton for the limbs of vertebrates.
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