Jurassic
geo:time:period:jurassicJurassic Period (201.4–145 Ma): giant sauropod dinosaurs; Archaeopteryx (first bird, ~150 Ma); Pangaea fully splits into Laurasia and Gondwana; ammonites widespread.
Jurassic Period (201.4–145 Ma): giant sauropod dinosaurs; Archaeopteryx (first bird, ~150 Ma); Pangaea fully splits into Laurasia and Gondwana; ammonites widespread.