During which period did the dinosaur disappear from the earth?
6,000 years ago. check my bibical timeline Answer: Dinosaurs lived on Earth for over 160 million years, from the late Triassic period (about 230 million years ago) until the end of the Cretaceous period (about 65 million years ago). At the end of the Cretaceous an extinction event caused the death of most dinosaur species. Only birds, which evolved from theropod dinosaurs during the Jurassic period, survived until the present day.
The Mesozoic Era in the Triassic Period. Dinosaurs first appeared during the Triassic Period (250-230 million years ago) and were on the Earth through the Jurassic Period (200-145 million years ago) until the end of the Cretaceous Period (65 million years ago). This whole era is called the Mezozoic Era (250-65 million years ago). Dinosaurs are classified as a diverse range of reptiles, but the first true dinosaur evolved from Archosaurs (Ruling Lizards).