The first thing is to know that is a dinosaur, hence the term, and know roughly, their characteristics and way of life. So why start. The history of dinosaurs began about 230 million years in the mid-Triassic period. Dinosaur is a Latin word. The first proposed this word was the English scientist Sir Richard Owen in 1841. Dinosaur means "terrible lizard," and this name comes because Sir Richard saw them as a large extinct reptiles, very different in the animal kingdom. Dinosaurs are the result of a process of specialization of the locomotors system, which has led them to have the limbs extended to the side ...