230-65 Ma:
Dinosaurs
2 Ma:
First Hominids
4550 Ma:
Formation of the Earth
Hominids
Mammals
Land plants
Animals
Multicellular life
4527 Ma:
Eukaryotes
Formation of the Moon
Prokaryotes
ca. 380 Ma:
First vertebrate land animals
ca. 530 Ma:
Cambrian explosion
251
a
M
2
4.6 Ga
ca. 4000 Ma: End of the
Late Heavy Bombardment;
first life
Ha
de
an
4 Ga
Ga
ic
3.8
zo
leo
c
ozoi
Mes
Pa
54
65 Ma
Cenozoic
750-635 Ma:
Two Snowball Earths
Ma
ca. 3500 Ma:
Photosynthesis starts
3 Ga
ic
o
oz
Arc
ter
hea
Pro
n
1 Ga
2 Ga
a
2.5 G
ca. 2300 Ma:
Atmosphere becomes oxygen-rich;
first Snowball Earth