Línea cronológica fotos

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254 Million years ago

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2.6 Million years ago

CUATENARY ERA

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66 Millions years ago

Cenozoic era

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540 Million Years Ago

Paleozoic era

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4 Billion Years Ago

precambrian era

Eras timelapse

254 M.Y.

Mesozoic EraAs (Mesozoic | U.S. Geological Survey, s. f.) says the Mesozoic Era, also known as the “Age of Reptiles”, is one of the major divisions in Earth's geological history. It spanned approximately from 252 million years age to 66 million years ago, and is famous for being the era when dinosaurs dominated the EarthSome of the characteristic of this period are:Formation of the Rocky MountainsReptile Mastery Warm climate

Mezosoic era

540 M.Y.A

Paleozoic Length: It started 540 million of years ago and ended 250 million of years ago Features: India and Antarctica) and Pangea. - The seas receded, what will give rise to future deserts. - Life existed predominantly in the sea: invertebrates, jellyfishes, worms, mollusks, snails, and corals dominated the oceans. The first vertebrates appeared.

Paleozoic era

66 M.Y.

Cenozoic • Separation between continets and formation of big mountains. • It was dominated by mammals, included primates.

Cenozoic era

2.6 M.Y.

Cuaternary• Big glacial era and the increase of sea level.• Land inundation and expansion of continents.• Homo sapiens dominate.

Cuatenary

4 B.Y.A

It started approximately 4 billion years ago - 570 million years ago. Features: - Tectonic plates divided and that was the reason why primitive oceans. were born. - First unicellular organisms and first oxygen-producing organisms appeared. - These organisms modified the dense atmosphere composed mainly of methane, hydrogen and carbon dioxide, as well as toxic gases released by volcanoes.

Precambrian era