The Late Jurassic is a geologic time period that extends from approximately 163 to 145 million years ago. During this time, the supercontinent Pangaea began to break apart into the modern-day continents of North America, Europe, and Asia. Additionally, the first birds appeared during the Late Jurassic.
The Late Jurassic is characterized by warm temperatures and high sea levels. This was due in part to the large amounts of volcanic activity that took place during this time period. Additionally, there was a significant increase in plant diversity during the Late Jurassic. Many new species of plants appeared during this time, including flowering plants and conifers.
Fossils from the Late Jurassic are some of the most well-preserved and commonly found fossils in the world. This is due in part to the fact that many sedimentary rocks from this time period were deposited in marine environments where conditions were ideal for fossilization. Some of the most famous fossils from the Late Jurassic include those of dinosaurs such as Diplodocus, Allosaurus, and Stegosaurus.