-
4600 BCE
Guide fossil-Precambrian
Estromatolitus -
Period: 4600 BCE to 575 BCE
Precambrian
Geological event: first ocean
Climate event: oxygen is created -
3800 BCE
First unicellular form
Precambrian -
520 BCE
First most complex life form (invertebrates)
Paleozoic -
520 BCE
Guide fossil-Paleozoic
Trilobites -
Period: 520 BCE to 260 BCE
Paleozoic
Geological event: supercontinent (pangea)
Climate event: global warming -
470 BCE
First land plants (gymnosperms)
Paleozoic -
400 BCE
Fish age
Paleozoic -
300 BCE
Anphibian age
Paleozoic -
250 BCE
Guide fossil-Mesozoic
Amonites -
250 BCE
Guide fossil-Mesozoic
Belemnites -
Period: 250 BCE to 65 BCE
Mesozoic
Geological event: Pangea is broken
Climate event: big amounts of CO2 -
145 BCE
Age of reptiles
Mesozoic -
67 BCE
First angiosperm plants (with flower)
Mesozoic -
40 BCE
Age of birds and mammals
Cenozoic -
40 BCE
Guide fossil-Cenozoic
Nummulites -
Period: 40 BCE to 1 CE
Cenozoic
Geological event: continental drift ends
Climate event: ice age -
12 BCE
First homminids
Cenozoic -
1 BCE
Homo sapiens appears
Cenozoic