The world of dinosaurs continues to fascinate us. The discoveries of fossils from the Mesozoic era have recently been so common that it is difficult to keep up with the latest development of knowledge. The book allows you to penetrate the period millions of years ago and introduce you to dinosaurs and their contemporaries, as well as organisms living in front of them and after them in the light of new findings. For generations of paleontologists, they have told us about how life on Earth has developed and the role of the most popular group of prehistoric creatures - Mesozoic dinosaurs - played. Only recently have we begun to understand how extremely a successful and important group of vertebrates dinosaurs were. After all, there are still with us in the form of small feathered forms, which we usually call birds. The book will show you known species in the new light and will introduce new species that we only know about briefly. Beautiful illustrations created under the supervision of experts are complemented by a comprehensible text that will reveal the most important information about individual species and their world.