Palaeontological deductions from the fossil remnants of extinct dinosaurs tell us much about their classification into species as well as about their physiological and behavioural characteristics. Geological evidence indicates that dinosaurs became extinct at the boundary between the Cretaceous and Paleogene eras. about 66 million years ago. at a time when there was worldwide environm... https://classiquesupplyes.shop/product-category/e-files/