None. The first dinosaurs did not evolve until around 230 million years ago. The first reptiles appeared just before 300 million years ago. These animals would have looked rather like lizards though they are not represented by any modern group of animals.
The archosaurians that include the alligators, birds and thecodonts, crocodiles, dinosaurs, and pterosaurians are the low land animals that lived 245 to 65 million years ago. The population was dominated by dinosaurs.
Dinosaurs dominated the land from 200 Million Years Ago to about 66-66 Million Years Ago.
well florida was submerged under water so what was found was prehistoric sharks and sea urchins.
Dinosaurs evolved on land and never lived in aquatic habitats. They existed between 225 and 65.5 million years ago, with the exception of birds, a group of dinosaurs that thrives to this day.
Dinosaur lived in pretty much anywhere in the world some migrated to other parts of the world
Yes, they were the dominant land animals for over a hundred million years. In that time there would have been trillions of individuals, easily ten thousand dinosaurs for every human who ever lived.
Excluding birds (a subgroup of dinosaurs), they lived for 166 million years, which is a long time for an animal group. Including birds, they have been around for 231.4 million years so far, and will probably continue to exist as long as there is vertebrate life on land.
The type of animal that lived only during the Mesozoic Era (Age of Reptiles) were the dinosaurs. They evolved during the late Triassic and the Jurassic periods, and were the largest land creatures during the Cretaceous period of the era.
No, dinosaurs existed during the Mesozoic era, which ended about 66 million years ago. The Cenozoic era began after the Mesozoic era and continues to the present day, during which mammals became the dominant land animals.
Yes. Dinosaurs were the dominant land vertebrates from about 200 million years ago to about 65 million years ago (A bit longer if you count a few million years when birds where dominant). Mammals then took over some time after non-avian dinosaurs went extinct.
there were no types of water dinosaurs. Diosaurs only lived on land.
Dinosaurs ---- Dinosaurs first appeared in the last part of the Triassic period, about 230 million years ago. That was during one of the lowest ebbs of atmospheric oxygen content of the last 500 million years.