Tyrannosaurus rex adults can grow to a maximum height of 4 meters and a length of about 12 meters. He still lost a giant with a Giganotosaurus carolinii which can grow up to 5 meters long and about 13 meters. But healso was not the greatest predator.
Spinosaurus aegyptiacus are (which means lizard with backbones) that live in the area of what is now NorthAfrica, is the largest carnivorous dinosaur.
Animals that live in the Albian to Cenomanian stage, in the Cretaceous period (about 112 to 97 million yearsago) could grow to 18 meters high and 6 meters and weigh up to 23 tons. Spinosaurus following comparisonwith other carnivorous dinosaurs:

Spinosaurus skull long and flat, like the head of a crocodile. On the back there is a sort of screen which bonecan grow up to 1.65 meters.
These animals have seven teeth on each side of the mouth of the front and 12 teeth on each side of the jawinside. Unlike other carnivorous dinosaurs have teeth tend to be curved, straight Spinosaurus's teeth and the possibility to function like a knife that make it easier to eat a slippery prey.
Like a modern grizzly bears, Spinosaurus spend a lot of time at or near the water to catch fish. But with the size of dinosaurs is probably not only eat seafood, but also kill and eat other dinosaurs. Including meat eatingdinosaur carcasses.
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