Mig estuaire philippe g

Devonian Period

By echu1023
  • mya Beginning of the Devonian Period
    354

    mya Beginning of the Devonian Period

    The Devonian Period Started.
  • Period: 354 to

    Devonian Period

  • mya First Jawed Fish
    365

    mya First Jawed Fish

    The acanthodians was a jawless fish. They are also called spiny sharks and live in fresh water.
  • mya First plant with seed
    410

    mya First plant with seed

    First plants with seeds began to grow creating forests. At first they were only moss and those plants but now there were trees.
  • mya Forests
    415

    mya Forests

    Toward the end of the Devonian the first forests arose as stemmed plants evolved strong, woody structures capable of supporting raised branches and leaves. Some Devonian trees are known to have grown 100 feet (30 meters) tall.
  • mya Extinction

    mya Extinction

    A huge extinction occured ending the Devonian Period. The most important group affected by the extinction was the great-reef systems.
  • mya Placoderms

    mya Placoderms

    Placoderms are huge fish with an armored body and head. placoderms were the dominant vertebrate group during the Devonian period, growing larger than other groups of fish. They are one of the first jawed fish.