A.Definisi Dinosaurs
Dinosaurs are ancient reptiles that dominated the earth for more than 160 million tahun.Mereka first appeared 230 years ago, during a period known as the Age Trias.Mereka geologists berkembangpesat during the next two periods, called Jura era (200-145 million years ago ) and Cretaceous (145-65 million years ago).
Early generation reptilian dinosaurs lived with other animals, such as lizards, crocodiles primitive and animal amfibi.Kata dinosaurs comes from the Greek word meaning deinos terrible, and sauros meaning kadal.Jadi, dinosaur means "terrible lizard" .They are named as it is because the dinosaur fossil was first found to be very large, but the size and shape of dinosaurs vary from the smallest of the chicken, while the largest will create a four-storey building looks kecil.Beberapa dinosaur was carnivorous and others are eating only live tumbuhan.Dinosaurus living on land and in the air are called pterosaurs, while living in the water called Plesiosaurus.Pada generally, the dinosaur has a great body and kuat.Terlihat like animals very creepy.
Dinosaurs are ancient reptiles that dominated the earth for more than 160 million tahun.Mereka first appeared 230 years ago, during a period known as the Age Trias.Mereka geologists berkembangpesat during the next two periods, called Jura era (200-145 million years ago ) and Cretaceous (145-65 million years ago).
Early generation reptilian dinosaurs lived with other animals, such as lizards, crocodiles primitive and animal amfibi.Kata dinosaurs comes from the Greek word meaning deinos terrible, and sauros meaning kadal.Jadi, dinosaur means "terrible lizard" .They are named as it is because the dinosaur fossil was first found to be very large, but the size and shape of dinosaurs vary from the smallest of the chicken, while the largest will create a four-storey building looks kecil.Beberapa dinosaur was carnivorous and others are eating only live tumbuhan.Dinosaurus living on land and in the air called Pteirosaurus while living in the water called Plesiosaurus.Pada generally, the dinosaur has a great body and kuat.Terlihat like animals very creepy.
The following characteristics of dinosaurs, Pteirosaurus, and plesiosaur:

The characteristics of Dinosaurs:
A big man.
Looks like lizards (but not reptiles)
Has two legs in the upright position.
Live on land. Pteirosaurus characteristics:
Useful to have wings to fly.
Has a crown on the back of the head.
Have small legs and arms.
Live on air.
Plesiosaur characteristics:
In general have a long neck.
Have fins to help him swim.
Smooth-skinned.
Live in the water.
3 dinosaurs lived at the time of that era Triassic, Jurassic, and lime.
Following the third state in the era:

1.Zaman Triassic.
Age is the age of the beginning of the Triassic dinosaurs, occurred about 200 million years lalu.Pada Triassic era, most of the continent together to form a single large continent called Pangea.Laut very large surround Pangea in the know as Panthalassa.Nantinya, Pangea will be split into several continents as it is now. Natural conditions at the Triassic period is barren, dry, and red rocks hot.There berpori.Pada many times there is a lot of land in the form of desert heat and kering.Kebanyakan plant life around the lake or puddle while descending hujan.Tumbuhan living in the Triassic age are Taxus tree, Ginkgo, and some types of plants paku.Tanaman which is the chain kehidupan.Rerumputan and flowering plants are not found here.
In this difficult environment, some reptiles do not manage to survive, but there are able to survive and thrive biak.Salah them is Dinosaurus.Generasi early dinosaur reptiles live with other animals, such as lizards, crocodiles primitive and animal amfibi.Selain Dinosaurs, in fact there is also a primitive reptile and mammal-like reptiles that live in the age Triassic.Pada this age, Postosuchus is primitive reptilian most berkuasa.Ia carnivorous quadruped and has a body along a 6 meter.Postosuchus usually prey on Placerias, mammal-like reptiles eating vegetation This tumbuhan.Mamalia has a body 3 meters.
Evidence suggests that an asteroid has led to disaster for civilization between the Triassic and Jurassic.Tiba suddenly there was a volcanic eruption, earthquake and tsunami, which resulted in half reptilian on the planet at that time menghilang.Pada many species are wiped out, and it paved the way for the dinosaurs to become the ruler of the earth.

2.Zaman Jurassic.
Dimukai Jurassic Period about 213 million years lalu.Pada this time, the Earth has warm temperatures and frequent rains, because the plants grow faster and more forests bermunculan.Tetapi during this period, flowering plants and fruits have not there.There many regions of the vast watery, sbtropis forests, and coral reefs.
In the Jurassic era, many dinosaur species were appearing and employed under the earth, like a giant meat-eating dinosaurs, dinosaurs and other armored dinosaurs lain.Dinosaurus are divided into two broad categories, namely Saurichia (lizard berpanggul) and Ornithischian (bird berpanggul) Then Saurichia divided into Saurupodomorpha (plant eaters) and theropod (carnivorous) .In addition, there is also omithopods plant eaters. 3.Zaman Kapur.
Age is named Cretaceous or Cretaceous because at that time in Europe inventory very melimpah.Zaman Cretaceous limestone or chalk era took place approximately 150 million years ago.
At that time, the small supercontinent, Gondwana, experienced a considerable rift South besar.Amerika moving clockwise approached Antarctica and Australia, while Africa increasingly sticky with Eurasian, but not followed by large islands of Africa, which is already a stand-alone Madagaskar.