The first dinosaurs to roam the earth were likely small, bipedal carnivores that lived around 230 million years ago during the Triassic period. There are several candidates for the title of "first dinosaur," including Herrerasaurus, Eoraptor, and Staurikosaurus, but it is difficult to say for certain which one of these dinosaurs was the first to evolve.
Herrerasaurus, for example, is considered to be one of the earliest known dinosaurs, and is thought to have been a small, bipedal predator. It had a number of features that are characteristic of dinosaurs, such as a large head, sharp teeth, and a long tail.
Eoraptor is also a possible first dinosaur. It is a small, bipedal animal with a long, slender body and a small head. It had a long tail and sharp teeth, indicating that it was a carnivore.
Staurikosaurus is another early dinosaur, it lived around 228 million years ago in what is now Brazil. It is considered to be one of the earliest known members of the group that includes the large, long-necked sauropods.
It's worth noting that the classification and evolutionary relationships of these early dinosaurs are still being studied and debated by paleontologists and the discovery of new fossils and new technologies can change the current understanding of the first dinosaurs.
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Paleozonic era
Yes, archaeologists have found numerous bones from dinosaurs underground.
Dinosaurs lived during the Mesozoic era.
No. the first Dinosaurs were in the Triassic period, which came later
As long as they were plant eaters Dinosaurs don't eat humans because there were still no humans when the dinosaurs roam the earth.
dinosaurs
dinosaurs roamed the earth about 65 million years ago.
Dinosaurs stated to appear 240 million years ago.
Dinosaurs first appeared in the tertiary stages of the Earth. Tertiary was when the dinosaurs ruled the earth. Then there was jurassic and then creteacious
Because they're using a definition of "dinosaur" that allows them to think that.
Dinosaurs and mammals coexisted during the Mesozoic era. If you count birds as dinosaurs, then they still coexist now in the Cenozoic.
I don't know by fossil record but I have a book called walking with the dinosaurs and it said 220 million years ago