This not only makes it larger than the T Rex, but it also makes it quite a bit heavier. Not quite as big as Spinosaurus, but significantly bigger than the Tyrannosaurus. Fortunately, these two dinosaurs never existed at the same time or the same place. The Giganotosaurus lived 30 million years before the T Rex—during the late Cretaceous period

It is believed these dinosaurs floated in much the same way that modern crocodiles do; lying in wait and then using the element of surprise to hunt prey. They were first discovered in 1912 in Western Egypt by Richard Markgraf, although this original specimen was destroyed during the bombing of Munich, Germany during World War II. Since then, scientists have had to make due with studying the plaster casts of this animal.

From its skull, paleontologists were able to figure out just how big it was and how it probably lived. Sereno named it Kaprosuchus – a name which means “boar crocodile” in Greek. One of the most interesting facts about Kaprosuchus is that it was given its name because its skull had oversized tusks in its upper and lower jaws.

The dinosaurs depicted in these movie were actually based on Deinonychus and not true Velociraptors. In real life, they were only about the size of a turkey and had feathers, and weren’t the man-sized reptilian dinosaurs they were depicted in the film. The average Velociraptor weighed approximately 30 pounds and stood a little bit over 3 feet tall.

When it was first discovered it was believed to have been an unusual type of bison. However, it was discovered rather quickly that this wasn’t just an unusual form of bison but was actually a dinosaur. Since then, Triceratops specimens have been found all over North America.

While this dinosaur is routinely classified as an herbivore, it’s teeth might suggest something else. An interesting fact about Dracorex is that it had extremely sharp, serrated teeth. This may indicate that this dinosaur was in fact not an herbivore but was actually an omnivore

If you look closely at Moschops pictures, then you might not know what to make of this mammal-like reptile. It had a barrel-shaped body, short back legs, long front legs and a short tail. And that isn’t its worst features. It also had a thick skull that looked very cow-like, except for its teeth.

This dinosaur also had two rows of spikes that traveled down its body, large horns on top of its head and a club like tail that had spikes on it. All of this armor was necessary for it to protect itself from some of the apex predators of the time including the T Rex, Deinonychus and Tarbosaurus. The only way any of these predators could wound the Ankylosaurus would be for them to attack the underbelly of this dinosaur where there wasn’t any armor.

However, that proved to have not been correct. The eggs in which this dinosaur was found atop of is now believed to have belonged to the Oviraptor. Therefore, it wasn’t stealing them but was actually taking care of them.

This dinosaur is one of the largest beaked dinosaurs to have ever been found. It was about 25 feet long, 16 feet high and weighed approximately 2 tons. It was probably an omnivorous dinosaur who lived off of plants and fruits, eggs, smaller dinosaurs and maybe even crustaceans. This dinosaur lived approximately 85 million years ago during the late Cretaceous Period and roamed the plains of central Asia.

Therizinosaurus was first discovered in 1948 by a Soviet- Mongolian fossil expedition in Southwest Mongolia. This expedition found several claws which they presumed to have belonged to a turtle-like reptile. This would remain the popular belief until 1970 when Anatoly Konstantinovich Rozhdestvensky came to the conclusion that this species was a dinosaur and not a turtle.

It also had hollow bones just like birds do. It was about 12 feet long, 6 feet tall and probably weighed around 300 pounds. An interesting fact about Ornithomimus is that it is quite likely that this dinosaur could run really fast. After all, it was shaped much like a modern ostrich, and those birds can run pretty fast as well.