Prehistoric Time Line, The Evolution of Life on Earth From the Beginning to Date
Earth formed about 4.6 billion years ago, Pls our solar system began to form around the sun. Born of an exploded star Called a supernova.
A new star collect dust and gas swirling around it. As the sun began to heat up, began to accumulate material orbiting EACH other to form a protoplanet collided with the tug of gravity.
Formed the world's oldest stone
The oldest stone structure in the world has known, originated from pieces of the Earth's crust that is created when molten lava emerges from a fault under the sea. Found in western Greenland, this formation has been aged 3.8 billion years ago. The same ancient rock formations have also been identified in canada and Australia. In Australia even 4.4 billion years old.
Oxygen Starts Many
Formerly the earth is a dangerous place to live until finally the amount of oxygen began to increase about 2.5 billion years ago. The air can be inhaled was created by cyanobakteria, who live in the sea. These bacteria carry out photosynthesis are the end result is oxygen. Thus forming the protective ozone that protects Earth from solar radiation.
Cambrian Era (y.a 570 million - 500 million y.a) Appears hard-shelled molluscs
Shelled mollusks found in the fossil record 545 million years old. The origin and early evolution 
of this group is unknown. The first fossil of this form of manoplacophorans, the ancestors of most mollusks today.
The first vertebrates appear
Vertebrata (vertebrate creatures) is a fish with no jaw first named agnathans. The oldest vertebrates found in 1990 that 530 million years old in china. Where scientists find 2 types of fish with no jaw, which was named haikouichthys and myllokunmingia. Agnathan is prominent in the ocean until it was replaced by fish jaw.
First Berkartilago Evolve Fish
Ancestor of sharks start swimming in the sea some 450 million years ago. Named cartilage fish because their skeletons are made of cartilage rather than bone. Cladoselache, one fossil shark, growing to 2 meters in length. Cladoselache, has a long jaw and teeth are fine.
Silurian Era (y.a 435 million - 410 million y.a)
Spiders and Scorpions Toward CoastWe know they are now on land, but the arachnid group which includes scorpions and spiders the beginning of life at sea. Arachnid scorpion estimated as the oldest, and has been seen since 430 million years ago.
Plants begin to grow
Plants begin to grow from 430 million years ago. The transition from sea to land plant evolution is a difficult challenge. They use the vascular system such as tissue-shaped tube for transferring water and nutrients to the land.
Devonian (410 million y.a - 360 000 000 y.a)
Amphibians emerged from the water
Amphibians start out of the water about 370 million years ago. They evolved from fish that breathe air that runs in the shallow waters, has fin-like limbs. Ancient amphibians, such as elginerpeton, had tail fins and breathing through a simple lung and skin.
The formation of the super continent
Formerly the Carboniferous period, the continents gathered so 1 which we call Pangaea, continents are formed from the merger of two great continents, Gondwana and southern dibelahan euramerica earth which is a mixture of North America and northern Europe. Combined this euramerica Gondwana and formed the Appalachian Mountains in eastern North America.
Carboniferous era (360 million yes - yes 290 000 000)
Coal-forming swamp forests began to develop
This forest has enough room to grow because of low water levels. Lycopods produce raw materials for fossil fuels in America. Coal is found in North America, Europe, and most of Asia (eg in Indonesia) - all created in the Carboniferous era.
Reptiles first began to appear
Reptiles evolved from amphibians about 300 million years ago. Known named anapsids, whose shape resembles a modern lizard. Then reptiles evolved significantly in the skull, making them lighter and has a jaw muscle. Anapsids found trapped inside the Carboniferous trees in canada
Permian Era (y.a 290 million - 248 million y.a)
Reptile world domination
The emergence of the super continent (Pangea), resulted in a less friendly environment, spacious, and arid with extreme temperature. Reptile is a creature that can adapt well in this environment.
Earth's largest extinction
Permian period ever experienced a period of extinction, about 95% of sea creatures die and 70% land creature. These extinctions caused by climate change (global warming), volcano eruption, a lot of methane gas out of the earth. Where is the worst extinction occurred about 248 million years ago.
Triassic Era (y.a 248 million - 205 million y.a)
Dinosaurs appear
The age of dinosaurs are known about 240 million years ago, known from fossils found in Madagascar prosauropods. Fossil - other fossils found in Argentina, including meat eaters, euraptor and Herrerasaurus, which has a length of 6 meters.
Super separate continental
Pangea, began to separate at the end of the Triassic era, became Gondwana and Laurasia. The process begins with separation of Europe from Africa, forming an ocean called the Tethys ocean. Continent - continent apart to form new oceans become "biological barrier" that makes each continent to develop plants and animals on their own.
Small furry animals began to appear
Mammals emerged directly from his ancestors, which indeed resembles therapsid mammals. There is little terapsid who survived the mass extinction period premian, including small animals that live in the soil, have warm blood and covered in fur.
Jurassic Era (y.a 205 million - 138 million y.a)
Dinosaurs dominated the earth
Animals that can rule the earth for nearly 150 million years old began to dominate from this jurassic period. Where their bodies grow large, for example, plant-eating dinosaurs, sauropods. A long-necked and can grow to over 6 meters.
Birds began to fly
The emergence of winged animals is known from fossils that are in German, which is 150 million years old. The fossil shows the creature has a wing feathers but still have characteristics such as reptiles, like the tail, claws and sharp teeth. This animal was named Archaeopteryx (ancient wing)
Cretaceous Era (138 million y.a - 63 million y.a)
Flowering plants began to bloom
Plant flowers that bloom in the fossil record 125 million years old, the oldest comes from China. This plant is estimated to have existed in the jurasic, but development began in the Cretaceous, at a cool temperature.
Dinosaur extinction
At the end of the Cretaceous, 65 million years ago. Marked by the demise of the dinosaurs. 50% of animals and plants is expected to vanish. Climate change is expected to be the cause of indirect and meteor collision may be the main cause.
Paleogene Era (y.a 63 million - 24 million y.a)
Mammals to fill the place of dinosaurs
When dinosaurs suddenly disappeared, mammals take his place. They spread rapidly. Events of mammalian development was started about 60 million years ago. Including the emergence of a family of mammals such as cat and dog hunters.
Primates seen in a tree
Actually, when primates started to look uncertain, according to fossils found in them have appeared about 55 million years ago. Including the tarsier-like primates found in North America, Asia and Europe, they are small, smart, hairy and lives in a tree
Neogene Era (24 million y.a - 2 million y.a)
Early humans began to appear
Estimated to occur in 6-8 million years ago, early humans who have discovered the oldest aged 5.8 million years ago. These early humans possess characteristics similar to chimpanzees, such as the jaw, shoulders, and arms, except that they walked upright.
Quarternary Era (2 million y.a - now)
The world entered an ice age
1.8 million years, Earth's history is dominated by ice ages with varying intensity, most of which ended about 10,000 years ago. The coldest period was ended when ice on Earth began to melt, causing the extinction of mammoths and woolly rhinoceros.
Modern man is born
Homo sapiens emerged about 190,000 years ago in eastern Africa, early modern humans and then go to Australia and South America, which will create their own race.
