Timeline bio (life's watch)

Universe's formation

13,500 BCE

Big Bang takes place.

Earth's Formation

4500 BCE

First organic molecules

4000 BCE

Life appears

3000 BCE

First prokaryotic cells appear

Oxygen in the air

1800 BCE

Thanks to the stromatolytes (prokaryotic cells) that were photosynthetic.

First eukaryotic cells

1400 BCE

First eukaryotic cells appear thanks to the oxygen in the air.

Multicellular organisms

600 BCE

First multicellular organisms appear, that will give the species to create the diversity.

First invertebrates

550 BCE

First vertebrates

500 BCE

First vertebrates appear, thanks to the multicellular organisms, the diversity is taking shape.

Dinosaurs and mammals coexist

200 BCE

Cretacous extinction

66 BCE

Three quarters of the diversity in earth get extinct.

Australopitecus

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