معذرة، فالصفحة التي تبحث عنها في هذه المدونة ليست متوفرة.
What is a dinosaur ?
? What is a dinosaur
The Mesozoic Era is the name
for the time when dinosaurs dominated the Earth. Lasting for over 180 million
years, this enormous era is divided into three time periods called the
Triassic, Jurassic, and Cretaceous. As the climate
changed and new types of plants grew, different animals appeared. To describe
when
these periods were we shorten “million years ago” to
MYA.
