Don´t know about top 3 but I know that one of the oldest is the Coelophisis.
well the dinosaurs are considered reptiles and they are the oldest so dinosaurs. hope this helped you
the trex beause it is the king of the dinosaurs
Hinduism is the oldest surviving religon. It's in the top 3 so i guess it is "major"
a dinosaurs tooth
eoraptor was one of the oldest dinosaurs. it lived about 225 million years ago, this was in the late triassic.
No. Dinosaurs were not mammals. They were more closely related to birds and modern reptiles than they were to mammals.
It would be sharks. They outlived dinosaurs!
Technically scientists believe dinosaurs exsist in the form of birds and other reptiles. There are also crocodileswhich the oldest dinosaurs evolved into, so the dinosaurs really never went extinct!
One of the oldest known dinosaurs; late Triassic; cannibalistic.
yes!
The oldest extinct mammal is one that lived among the dinosaurs. There are new mammals that are being discovered regularly.
No. Dinosaurs and trilobites are completely different. Trilobites were arthropods in the same phylum as insects and crustaceans. They went extinct before the first dinosaurs appeared. Dinosaurs are vertebrates and are technically classified as reptiles, though they had more in common with birds.