The Permian Period

  Pamela J. W. Gore, 1995-2010
Georgia Perimeter College

  1. Major climatic changes

    1. Glaciers spread over Gondwanaland then melted and retreated

    2. Drying of climates at low latitudes led to contraction of coal swamps and extinctions among spore-bearing plants and amphibians.

    3. Evaporites accumulated in many areas

  2. Amphibians

    Skull of Neopteroplax, 290 mya,
    aquatic amphibian from the Late Carboniferous of Ohio,
    on display at the Smithsonian Institution
    Museum of Natural History, Washington, DC

    The large Permian amphibian, Eryops,
    about 5 feet (nearly 2 m) long
    on display at the Pratt Museum
    Amherst College

    Eryops, a land-dwelling amphibian
    from the Early Permian of Texas, 270 mya.

  3. Reptiles diversified and began to replace amphibians in various ecological roles.