The Lower Jurassic is the earliest part of the Jurassic period, spanning from about 201 to 174 million years ago. This geological time frame is characterized by the emergence of diverse dinosaur species and the development of lush vegetation, including early forms of conifers and ferns. The climate during this time was generally warm and humid, promoting the growth of various ecosystems. During the Lower Jurassic, significant geological changes occurred, including the breakup of the supercontinent Pangaea. This led to the formation of new oceans and the separation of landmasses, influencing the distribution of flora and fauna. Fossils from this period provide valuable insights into the evolution of life on Earth.