Name Apatosaurus
Means Deceptive lizard
Period Late Jurassic
Where Wyoming, Colorado, Utah and Oklahoma
Size Length: 75 feet
Height: 30 feet
Weight: 66,000 lbs
  Lumbering through the broad flatlands of the plain, Apatosaurus ate vast amounts of plant material (200 kilos, or 440 lbs!) each day to satisfy the needs of its huge size. Size was one of the best forms of protection that Apatosaurus had from predators. That, and the 50 ft tail which may have been cracked like a whip creating a deafening sound and warning others in the group of danger.