Chronology of the evolution
This chronology of the evolution describes the principal events of the development of the Vie on the Ground. The dates given in this article are evaluations based on scientific facts.
In Biology, the evolution is the process by which populations of living organisms acquire and transmit new biological features of generation in generation. On large scales of time, the repetition of this process explains the origin of news species and vast the diversity of the alive world. The contemporary biological species are connected between them by a common descent and are the product of the evolution and specialization on several billion years.
simple Chronology of the evolution:
- - 4.600 million years: formation of the planet Ground,
- - 4.000 million years: appearance of the procaryotic cells,
- - 3.000 million years: appearance of the Photosynthesis,
- - 2.000 million years: appearance of the cells eucaryotes,
- - 1.000 million years: appearance of a multicellular life,
- - 600 million years: appearance of animal simple,
- - 570 million years: appearance of the arthropods,
- - 550 million years: appearance of complex animals
- - 500 million years: appearance of the fish and the proto-Amphibians,
- - 475 million years: appearance of the terrestrial plants,
- - 400 million years: appearance of the insects and the seeds,
- - 360 million years: appearance of the Amphibians,
- - 300 million years: appearance of the reptiles,
- - 200 million years: appearance of the mammalian ,
- - 150 million years: appearance of the birds,
- - 100 million years: appearance of the flowers and
- - 65 million years: disappearance of the not-avian dinosaurs (see article Extinction of the Cretaceous) .
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