Before the Cretaceous era, the earth seems somewhat different from the present form.But this will soon change. At the end of the Cretaceous era climate became cooler, andmany big mountains in the world began to take shape. Many types of insects that weknow today began to emerge, such as ants, butterflies and bees.
We also know some great reptiles of that era. Deinosuchus large crocodile which is very similar, although larger than 2 times the amount of crocodile that lived in contemporary times. Other reptilian beings began to seem not like a dinosaur. Mosasaurus, for example, has a big dinosaur head and body like a fish. But not all large reptiles changedshape. Most importantly, this is the era of dinosaurs like Tyrannosaurus rex, terriblekillers with sharp teeth, like a knife.
Dinosaurs dominated the earth at the end of the Cretaceous era, but their day is almostover. About 65 million years ago, there was a large extinction and millions of creaturesdied. Among them are dinosaurs. Meraka has lived for nearly 165 million years, but nowtheir time has expired.