Era
Mississippian
229
Mississippien
165
From 310 to 345 million years ago
126
Devonian
50
From 310 to 405 million years ago
38
Dévonien
35
From 280 to 345 million years ago
19
Pennsylvanian
18
Pennsylvanien
14
Ordovician
5
Ordovicien
4
Cambrian
3
Carboniferous
3
From 230 to 345 million years ago
3
From 310 to 500 million years ago
3
From 310 to 570 million years ago
3
Permian
3
Permien
2
Cambrien
1
From 230 to 570 million years ago
1
Paleozoic
1