The first dinosaur appeared around 230-225 mya, in the middle of the Triassic period.
These ডাইনোসর were small-to-medium meat eaters with sharp teeth and claws. They ran quickly on their two longer back legs .
Fossils of Herrerasaurus তারিখ 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" অথবা "early thief".
Staurikosaurus was a meat eater similar to Herrarasaurus. It is known to have lived about the same time, in present দিন 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.
These ডাইনোসর were small-to-medium meat eaters with sharp teeth and claws. They ran quickly on their two longer back legs .
Fossils of Herrerasaurus তারিখ 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" অথবা "early thief".
Staurikosaurus was a meat eater similar to Herrarasaurus. It is known to have lived about the same time, in present দিন 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.
Pachycephalosaurs were among some of the last Dinosaur groups to appear. They lived 75-65 mya.
They are named after one of the best-known members of the group, Pachycephalosaurus.
Pachycephalosaurus means "thick-headed reptile," due to the domed and hugely thickened bone on the শীর্ষ of its skull--like a cyclist's crash helmet.
About 15 feet long from nose to tail, Pachycephalosaurus lived in Montana, South Dakota, and Wyoming.
Stegoceras, which also lived in North America, was about 8 feet long, with a body the size of a goat.
Homalocephale was about 10 feet long and had a flatter skull. It lived in East Asia.
Pachycephalosaurs may have defended themselves দ্বারা loweringtheir heads and charging at their enemies.
At breeding time, the males may have engaged in head-butting contests, as some মেষ and goats do today.
They are named after one of the best-known members of the group, Pachycephalosaurus.
Pachycephalosaurus means "thick-headed reptile," due to the domed and hugely thickened bone on the শীর্ষ of its skull--like a cyclist's crash helmet.
About 15 feet long from nose to tail, Pachycephalosaurus lived in Montana, South Dakota, and Wyoming.
Stegoceras, which also lived in North America, was about 8 feet long, with a body the size of a goat.
Homalocephale was about 10 feet long and had a flatter skull. It lived in East Asia.
Pachycephalosaurs may have defended themselves দ্বারা loweringtheir heads and charging at their enemies.
At breeding time, the males may have engaged in head-butting contests, as some মেষ and goats do today.
