The Burgess Shale Formation in the Rocky Mountains of British Columbia, Canada, is one of the world's most celebrated fossil fields. It is famous for the exceptional preservation quality of its fossils which are more than 500 million years old. The rock unit of the fossil bed is black shale, exposed at the surface of the earth in many places within the Yoho National Park, where the formation is located.

read more

The Jurassic is a geologic period that extends from 201 million to 145 million years ago, from the end of the Triassic to the beginning of the Cretaceous. The Jurassic constitutes the middle period of the Mesozoic Era, also known as the Age of Reptiles. It is named after the Jura mountains on the border between Switzerland and France, where rocks of this age were first studied.

read more

The Triassic Period was the first period of the Mesozoic Era. It occurred between 251 million and 199 million years ago. This period marked the beginning of major changes that were to take place throughout the Mesozoic Era, particularly in the distribution of continents, the evolution of life, and geographic allocation of living things.

read more

Earth during dinosaurs - Silurian Period!

Dinosaurs did not lived during the Silurian period, but it is good for you to know what happened during that period.

Silurian period lasts from 425 million to 405 million years ago. During that time first air-breathing animals appeared.

Earth during dinosaurs - Silurian Period!

Pangaea - About 250 million years ago the continents were all gathered together into one large continent. We call this land Pangaea, meaning all land. The collisions produced many mountain ranges including the Appalachians and Urals.

The continents will certainly continue to drift in the future. Some scientists think that continental drift happens in cycles. They predict that over the next 250 million years the small continents will gather together once more into a supercontinent like Pangaea.

About this time many plants and animals died. Some people think an ice age may have caused this mass extinction. The ice age could have been caused by the mountains and the position of Gondwanaland over the South Pole.