DINOSAURS TIMELINE

FUN FACT

FUN FACT

FUN FACT

CREATURES

EVENTS

FUN FACT

The Jurassic period 201.3 to 145.0 MYA

CLIMATE

• Brachiosaurus: Massive, long-necked sauropod.
• Stegosaurus: Known for back plates and tail spikes.
• Apatosaurus: Another large sauropod, often confused with Brachiosaurus.
• Allosaurus: Top Jurassic predator, carnivorous.
• Archaeopteryx: Earliest known bird, dinosaur link.

Chiappe, Luis M., and Lawrence M. Witmer. Mesozoic Birds : Above the Heads of Dinosaurs. Berkeley: University of California Press, 2002. Print.

Between 2-4 billion of the most famous dinosaurs lived during this period.

• Supercontinent Pangaea: A supercontinent that existed about 335 to 175 million years ago, comprising most of Earth's landmasses before breaking apart into the continents we know today.
• Rise of Dinosaurs: Dinosaurs diversified and became dominant land animals.
• First Mammals: Small mammals appeared, evolving alongside dinosaurs.
• Early Birds: Archaeopteryx, one of the first birds, emerged.

• Changing Climate: The climate was generally warm and humid, with fluctuations.
• Mountains began to form on the seafloor, causing sea levels to rise.

Foster, John Russell. Jurassic West : the Dinosaurs of the Morrison Formation and Their World. Bloomington: Indiana University Press, 2007. Print.

THE BREAKUP OF THE SUPERCONTINENTAL PANAGAEA allowed for the exchange of plants and animals between these regions and played a significant role in shaping the evolution of life on Earth.

SO MUCH WARMER THAN TODAY, THE JURASSIC CLIMATE ALLOWED FOR VEGETATION AND ORGANISMS TO THRIVE.

The Earth was warm and wet in many parts of the world, such as northern North America, Eurasia, and Indo-Austrialian Gondwana. While in other places, such as Africa, southern North America, and South America, there were deserts. The Earth as a whole was warmer than it is today. This gave way to lush vegetation and to an abundance of life.