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posted by GabsSaw
Coelophysis was a small, agile dinosaur that lived at the start of the Age of Dinosaurs, about 220 mya.

A huge collection of Coelophysis fossils were found in the 1940s, at a place called Ghost Ranch, New Mexico.

Hundreds of Coelophysis fossils were preserved together at Ghost Ranch---possibly a herd that drowned in a flood.

Coelophysis was almost 10 feet in total length. Its slim, lightweight build meant that it probably weighed 55-60 pounds.

Coelophysis belonged to the group of Khủng long known as theropods. It most likely ate small động vật such as insects, worms, and lizards.

Long, powerful back legs allowed Coelophysis to run fast.

The front limbs were like arms, each with a hand bearing three large, strong, sharp-clawed fingers for grabbing prey.

The birdlike skull was filled with small, sharp teeth.

Coelophysis means "hollow form". It was called that because some of its Bones were hollow, like the Bones of birds making it lightly built.
posted by GabsSaw
The first dinosaur appeared around 230-225 mya, in the middle of the Triassic period.

These Khủng long were small-to-medium meat eaters with sharp teeth and claws. They ran quickly on their two longer back legs .

Fossils of Herrerasaurus ngày from 228 mya and were found near San Juan in Argentina, South America.

Herrarasaurus was about 10 feet in total length, and probably weighed 200 pounds.

At about the same time and in the same place as Herrarasaurus, there lived a similar-shaped dinosaur named Eoraptor, which was only 5 feet long.

The name Eoraptor means "dawn plunderer" hoặc "early thief".

Staurikosaurus was a meat eater similar to Herrarasaurus. It is known to have lived about the same time, in present ngày Brazil, South America.

Procompsognathus was another early meat eater. It lived in the late Triassic period in Germany.

Pisanosaurus lived in Argentina in the late Triassic Period, and was only 3 feet long. It may have been a plant eater.
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