Era
Devonian
Dévonien
249
From 345 to 405 million years ago
185
Silurian
125
Mississippian
74
Carboniferous
32
Silurien
32
From 345 to 425 million years ago
28
From 310 to 405 million years ago
25
Mississippien
25
Ordovician
17
From 280 to 405 million years ago
11
Paleozoic
6
Carbonifère
5
Pennsylvanian
5
Ordovicien
4
Triassic
4
From 230 to 570 million years ago
3
From 345 to 500 million years ago
3
Paléozoïque
3
Dévonien
2
From 190 to 500 million years ago
2
Pleistocene
2
Trias
2
19th century
1
Cambrian
1
From 345 million to 2 billion years ago
1
Mesozoic
1
Proterozoic
1
Protérozoïque
1
Thuringia
1