Brachiosaurus is one of the largest known land animals, if not the largest. These dinosaurs measured about 23 m (75 ft.) long, and were about 12.6 m (41 ft.) high.
Well-known genera include Brachiosaurus, Diplodocus, and Apatosaurus (which, under current classification, is a senior synonym of Brontosaurus).
The biggest dinosaurs were the giant amphibious saurischians - diplodocus, apatosaurus (once known as brontosaurus) and brachiosaurus.
They included the huge, 4-footed plant eaters Diplodocus, which reached a length of 87 feet, and the heavier Brachiosaurus, which weighed as much as 80 tons. In their Jurassic heyday, they were the dominant ...
The first birds appeared (e.g. Archaeopteryx).
Dinosaurs included diplodocus, stegasaurus, brachiosaurus.
3. Cretaceous period: (144 million years ago) ...
Other early sharks included Orthacanthus, Hybodus and Megalodon. Modern forms of sharks evolved during the Jurassic period, about 150 mya; this was the time of the giant dinosaurs like Brachiosaurus.
Information Sheets About Sharks (and Rays) ...
 See also: Dinosaur, Diplodocus, Diver, Pterosaur, Reptile
  
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