The Jurassic Period represents a time interval in the Mesozoic Era, spanning roughly 201 to 145 million years ago. During this geological epoch, the supercontinent Pangaea was beginning to fragment, leading to the separation of landmasses that would eventually form modern continents. The climate was generally warm and moist, supporting diverse flora and fauna. The period is most notable in the fossil record for the dominance of large reptiles, including many types of sauropod dinosaurs, alongside extensive marine life such as ammonites and pliosaurs. The ecological evolution of plant life also advanced significantly, with the appearance of gymnosperms and early flowering plants setting the stage for later biological epochs.