Jura (geology)

The Jurassic (or Jura) in geology refers to a period lasting from about 201 to 145 million years ago, part of the Mesozoic Era. During this time, the Earth experienced significantChanges in climate, sea levels, and life forms. Marine environments expanded, leading to abundant marine fossils like ammonites, while dinosaurs thrived on land. The Jurassic is also marked by the breakup of the supercontinent Pangaea, creating new oceans and continents. This period left a rich geological record that helps scientists understand Earth's past climate, oceans, and the evolution of life.