Jurassic Earth was a golden time for dinosaurs, with formidable carnivores and powerful herbivores roaming the planet. Actually, these beasts survived for a minimum of 230 million a long time prior to becoming extinct all around 66 million a long time back at the end of the Cretaceous time period. https://dinosaurworldlive.com/blog/typical-day-in-the-life-of-a-dinosaur