The first dinosaurs appeared on earth about 250 million years ago just after the Permian-Triassic mass extinction. The Triassic dinosaurs weren't too fierce and they were mainly neutrally defensive, which means they don't attack unless provoked.
Turtles first appeared on Earth over 200 million years ago during the Triassic period, making them one of the oldest reptile groups still in existence today.
The first birds appeared around 150 million years ago during the Mesozoic Era. They evolved from theropod dinosaurs.
The first birds appeared during the Jurassic period, around 150 million years ago. They are believed to have evolved from small theropod dinosaurs.
Dinosaurs first appeared in the Triassic Period, which lasted from about 251 to 201 million years ago. They evolved from earlier reptiles and eventually became the dominant land animals during the Mesozoic Era.
The first dinosaurs appeared about 230 million years ago.
About 230 million years ago.
Dinosaurs lived and died out about 65 million years before humans walked the Earth.
The first dinosaurs appeared on earth about 250 million years ago just after the Permian-Triassic mass extinction. The Triassic dinosaurs weren't too fierce and they were mainly neutrally defensive, which means they don't attack unless provoked.
The first dinosaur's appeared on earth at about 230 million years ago. the first dinosaur was called Eoraptorc, found in Argentina and Brazil. It was a small meat eating creature. Scientist think there may be older dinosaurs out there.
No. Sharks appeared on earth long before the first dinosaurs did.
Dinosaurs first appeared on Earth during the Triassic period, approximately 230 million years ago. They dominated the planet for around 165 million years before going extinct around 65 million years ago.
Dinosaurs first evolved 231.4 million years ago and, with the exception of birds, died out 65.5 million years ago. This was during the Mesozoic era.
About 475 million years ago
Dinosaurs appeared on Earth long before the first humans or cavemen. Dinosaurs lived during the Mesozoic Era, which ended about 65 million years ago, while early humans appeared much later during the Pleistocene Epoch about 2.5 million years ago.
Turtles first appeared on Earth over 200 million years ago during the Triassic period, making them one of the oldest reptile groups still in existence today.
Well, for starters, dinosaurs first came to the earth around 280 million years ago, they were wiped of the face of the earth around 65 million years ago. Technically speaking, they have lived for a total of 215 million yeas ago.