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It's the first eon of Precambrian.
The most important events in this period are the formation of the Earth and the Moon.
There was no oxygen at this period and constant meteor shower.
The first rocks and the Lithosphere were formed as well as oceans.

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Is the first era of the Archean
Isua Greenstone Belt located in Greenland.
And the Late Heavy Bombardment of meteorites.

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The most important fact is the creation of the super continent Vaalbara.
The only fossils of this time are found in Australia and South Africa, wich are sedimentary rocks with layers of bacteries that are the first prove of life in the earth.
Those bacterias caused the first stromatolites.

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The first plate subduction in the earth and the broke of the supercontinent.
The first microbial life started to expand.

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There's a development in life and in the formation of continents.
Procariotic microbial appeared.
A new supercontinent is created that's called Kenorland.

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Is the first period of the Proterozoic that is divided into three eras, Paleo, meso and neo Proterozoic.
There is a fragmentation in the supercontinent Kenorland and Africa starts to develop

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This period it's known by the Huronial Glaciation that stopped because mountains started to develop.

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This time is characterized becaused there were to important impacts from meteorites, one of them caused the biggest crater on earth, Vredefort.

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Orogenies developed in this eras.
New tectonic plates were developed also

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Is the first period of the Meso-Proterozoic era.
Expansion of deposits of sediments and volcanic.
New platforms were created covering the craters.
The supercontinent Columbia started to break.

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Discover of pluricelular organism (red algae)

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Super continent Rodinia was formed.
There was the most important series of earthquakes because of a mantelic avalanche.

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Is the first period of the Neo-Proterozoic era.
The continent Rodinia is abolished.
The first radiation of acritarcs was produced.

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The last glaciation was produced
and another supercontinent started to form, Pannonia.

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First animal live (pluricelular organisms) are seen.

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Is the first period of the Phanerozoic eon divided into three eras, Paleozoic, Mesozoic and Cenozoic.
First marine live as molluscs.
First trilobites appeared.
Live started to spread out in the earth known as The explosion of the Cambrian.

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Oxygen was to poor to have live in the earth (not in the sea)
There was a formation of deposites of petroleum and gas.
There was a big extinction in animal live about the half of the animals disappeared completely.

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Formation of Laurussia, another supercontinent.
The first fish evolved legs and started to walk on land as tetrapods
The first arthropods like insects and spiders also started to colonize terrestrial habitats.

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First coal was created.
There was a low sea level.
Pangea started to form
Climate started to change.

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Pangea.
The biggest extinction know at the moment.
Admiots access

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Is the first period of the Mesozoic era.
During the Triassic, the first dinosaurs walked on the land.
The first pterosaurs sailed through the skies
The first ichthyosaurs and plesiosaurs swam in the oceans.
The lineage of many modern-day reptiles began in the Triassic Period, including crocodiles, lizards, and turtles.

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It's an important period because of the wealth of it's fossils.
Pangea split up in this period too.

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Dinosaurs were extincted
First plants with flowers appeared.
Mountains started to grew up.

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Is the first period of the Cenozoic era
Animals start to have large types.
And continents were in the same position as now.

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Hominids evolute.
But reptiles and birds were extinct.
Continents still in a similar way to nowadays.
Sea levels low down.

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Humans spread around the earth.
There was a extinction in many animal species.
Cycles of glacial growth.