Dinosaurs

Student Daniel Piqueras Cantos 1º CB Title Dinosaurs Type here Dinosaurs Dinosaurs ruled the Earth for over 160 million years, from the Triassic period around 230 million years ago through the Jurassic period and until the end of the Cretaceous period around 65 million years ago. The time period from 250 million years ago until around 65 million years ago is known as the Mesozoic Era. It is often referred to as the Age of the Dinosaurs because most dinosaurs developed and became extinct during this time. It is believed that dinosaurs lived on Earth until around 65 million years ago when a mass extinction occurred.  There are many different theories about why this happened. We will probably never know exactly what happened, which means that scientists will continue to disagree and come up with different dinosaur extinction theories.  Here is the famous theory: Asteroid Impact A massive asteroid hit the earth in Mexico about 65 million years.  It is thought that the impact would have caused massive damage, including a giant dust cloud which lead to massive changes in the climate. This would have destroyed lots of the cretaceous plants.