Era
Cretaceous
206
Quaternary
180
From 65 to 140 million years ago
98
From 2 million years ago
76
Crétacé
73
Paleozoic
53
Tertiary
50
Cenozoic
49
Jurassic
48
Precambrian
42
From 140 to 190 million years ago
32
From 65 million years ago
29
1979
27
Quaternaire
26
Pre-Quaternary
25
Tertiaire
25
From 230 to 570 million years ago
24
Jurassique
24
From 570 million to 5 billion years ago
23
1982
22
Eocene
22
Paleocene
22
From 40 to 55 million years ago
21
1939-1945
20
1990
20
Civil War, 1861-1865
20
Éocène
20
From 2 to 140 million years ago
20
From 2 to 65 million years ago
20
1980
19
Cambrian
19
Devonian
19
Mesozoic
18
Ordovician
18
1984
17
Mississippian
14
Paléozoïque
14
Paléocène
13
Pennsylvanian
13
Silurian
13
Partition, 1995
11
Proterozoic
11
From 345 to 405 million years ago
10
Permian
10
Pleistocene
10
1861-1865
9
1970
9
1983
9
From 280 to 310 million years ago
9
From 65 to 570 million years ago
9
more ...