amphibian emerges from the water

amphibians coming 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.

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.

 

spiders and scorpions to the beach

we know them now on the ground, but the arachnid group which includes scorpions and spiders originally lived in the sea. Arachnid scorpion estimated as the oldest, and has been seen since 430 million years ago.

 

The first fish evolved berkartilago

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.

The first vertebrates appear

vertebrates (vertebrate creatures) is a fish with no jaw 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 berahang.

 

hard-shelled molluscs appear

shelled mollusks are found in fossil form 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.

 

Oxygen began many

once 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 it 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

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.

 

Earth formed

Earth formed about 4.6 billion years ago, when our solar system began to form around the sun. Born from a star that exploded yaang called supernovae, the star of the new collecting 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.