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placodermi

/ˌplæk.əˈdɜːr.maɪ/

1 entry

noun

C2formalcommonscientific/ˌplæk.əˈdɜːr.maɪ/

uncountable · proper noun

An extinct class of prehistoric, armored fish that possessed primitive jaws and bony plates covering their heads and thoraxes.

  • 🇷🇺Вымерший класс доисторических панцирных рыб, обладавших примитивными челюстями и костными пластинами, покрывавшими их головы и грудные отделы.
  1. Extinct armored fish C2 formal scientific

    An extinct class of prehistoric, jawed fishes characterized by heavy bony plates covering the head and thorax.

    • Placodermi dominated the Devonian seas and rivers.
    • Fossils of Placodermi show the earliest known jaws in vertebrate history.
    • The largest known placoderm, Dunkleosteus, could grow up to 6 meters long.

    🇷🇺Плакодермы