Читать книгу The Handy Dinosaur Answer Book - Patricia Barnes-Svarney - Страница 27
How long did it take for dinosaurs to evolve from the first land animals?
ОглавлениеThe first larger land animals that would eventually lead to the appearance of dinosaurs evolved around 440 million years ago. Dinosaurs then evolved around 250 million years ago. Thus, it took about 190 million years for dinosaurs to appear after the first land animals. Remember, these numbers are based on the currently known fossil record, and could change if new fossils are found.