Era
Cretaceous
75
Permian
30
Tertiary
29
Pennsylvanian
27
Crétacé
26
Jurassic
23
Quaternary
22
From 65 to 140 million years ago
21
Cenozoic
20
Eocene
18
Miocene
17
Mississippian
17
Cambrian
16
Triassic
14
From 280 to 310 million years ago
11
Ordovician
11
Permien
11
Éocène
9
From 40 to 55 million years ago
9
Oligocene
9
Paleogene
9
Quaternaire
9
Tertiaire
9
Devonian
8
From 2 million years ago
8
From 65 million years ago
8
Paleozoic
8
Pennsylvanien
8
Cénozoïque
7
From 230 to 280 million years ago
7
Jurassique
7
Mississippien
7
From 140 to 190 million years ago
6
Neogene
6
From 2 to 65 million years ago
5
Holocene
5
Miocène
5
Cambrien
4
Carboniferous
4
From 2 to 140 million years ago
4
Paleocene
4
Trias
4
1981-
3
Dévonien
3
From 10 thousand years ago
3
From 10 to 40 million years ago
3
From 190 to 230 million years ago
3
From 310 to 345 million years ago
3
From 425 to 500 million years ago
3
From 500 to 570 million years ago
3
more ...