Dinosaurs were not the only thing around during the Mesozoic Era.

There was plenty of life in the water and on land, from large Mosasaurs to giant Sequoia trees. After all, the dinosaurs had to eat! The museum’s exhibits feature specimens that showcase the diversity of marine and plant life found from the Mesozoic era to modern times.

Marine Life Exhibits

  • Diplomystus Dentatus

    Green River Formation, WY

    One of the many fish fossils on display that has been found in Wyoming.

  • Crocodilian

    Green River Formation, Wyoming

    Excellent example of a preserved crocodilian.

  • Ammonite

    Wyoming

    Calamari anyone? This gorgoeus Ammonite was found right here in Wyoming.

Plant Exhibits

  • Preserved Flower

    Fort Union Formation, Sheridan County WY

    Uniquely preserved flower found by Museum volunteer Mike Bloodsworth.

  • Fossilized Sponge - Ordovician Period

    Bighorn Mountains, Sheridan County WY

    A very well-preserved fossilized sponge that has generated interest from all over the world!

  • Preserved Flower

    Wasatch Formation

    A recent donation of a beautifully preserved flower., found in the Wasatch Formation