The deposits and fossils left after that body of water, the Sundance Sea, dried up became this period's Morrison formation.
During this period, North America was home to an inland sea home to the ichthyosaur Ophthalmosaurus. The deposits and fossils left after that body of water, the Sundance Sea, dried up became this period's Morrison formation. Another of this period's fossil deposits, the Solnhofen limestone, contains the preserved feathers of an animal long thought to be the earliest bird, Archaeopteryx. Dinosaurs such as Brachiosaurus, Allosaurus, and Stegosaurus also lived during this period. For 10 points, identify this second geological period of the Mesozoic era, which took place after the Triassic.
During this period, North America was home to an inland sea home to the ichthyosaur Ophthalmosaurus.
Jurassic Period