What's in a Name?
Name means "arm lizard" because its forelimbs were longer than its hind legs
This quadrupedal, 50-foot tall dinosaur had nostrils on the top of its head. It is thought to have had a very large and powerful heart to pump blood all the way up its extremely long neck.
Jurassic Period about 156 to 145 million years ago
North America, Europe, Africa