The Brachiosaurus

Researched by Lilyann Wangerin

Brachiosaurus Description

  • Weighed about 70 tons
  • 70 feet long
  • Stood 39 feet off the ground which is as tall as a 4 story building and twice as tall as an adult giraffe
  • Nostrils were on top of the head

Period Brachiosaurus Lived In

  • Lived in the Late Jurassic Period
  • Also lived in the Early Cretaceous Period
  • Diplodocus and Apatosaurus also lived in the Late Jurassic period.

Brachiosaurus's Diet

  • Ate plants or was a herbivore.
  • Ate up to 400 kilograms or 880 pounds of plants everyday
  • Plants were coniferous trees, gingkoes and cycads

Brachiosaurus's Habitat

  • Lived 155.7 million to 150.8 million years ago in what is now Africa and North America
  • Also lived in woodlands of Europe and North Africa
  • Weather was semiarid with few wet seasons

Lifespan of Brachiosaurus

  • Unknown lifespan of the Brachiosaurus
  • Lived from Late Jurassic Period to the Early Cretaceous Period
  • Lived 155.7 million to 150.8 million years ago

Dinossaurs like the Brachiosaurus

  • Ultrasaurus may be just a large Brachiosaurus
  • Seismosaurus and Supersaurus are like Brachiosaurus
  • Diplodocus and Apatosaurus are like Brachiosaurus

Brachiosaurus Fossils

Big image

Theories of Dinosaurs Being Extincted

  • Nobody knows why and how they became extnicted
  • Three most popular theories are Asteroid Theory, Volcanic Theory, and Ice Age
  • The Earth may have changed the weather dinosaurs weren't able to adapt to the cooler, dryer weather

Ice Age?

  • Some think it was a severe Ice Age
  • Dinosaurs wouldn't be able to survive
  • that is what some think how dinosaurs became extincted

Meteor

  • This is the most popular theory
  • According to the theory a meteor hit earth about 65 million years ago
  • Would throw so much dirt that it would block the sunlight
  • Plants and animals would die from the dramatic change in climate
  • The results would be to much for the dinosaurs, they weren't able to survive

Volcano

  • Last theory to talk about is the Volcanic Activity theory
  • Volcano may have erupted and sent out a huge amount of ash and lava (or magma) around 65 million years ago
  • Could have pumped so much ash and magma that it blocked the sun causing the dinosaurs to die

My Ideas About Extinction

  • I agree with the Volcanic Activity theory.
  • A volcano erupted and spewed lava everywhere
  • Lava covered everything including the dinosaurs
  • Dinosaurs wouldn't be able to survive with the lava over them

Recommendations

  • Research something
  • Research something else or research about the Brachiosaurus
  • May even find some information that I didn't find
  • Remember this information, it will be very helpful in the future

Resources

How Did Dinosaurs Become Extinct? Life Studies on Line. Retrieved from http://www.lifestudiesonline.com/dinosaurs/extinct.htm


World Book Encyclopedia. Vol. 5. World Book, Inc., 2006.