Era
Quaternary
29
From 2 million years ago
12
Pleistocene
11
Permian
8
From 10 thousand to 2 million years ago
6
Miocene
6
Holocene
4
Mesozoic
4
Paleozoic
4
Tertiary
4
Cambrian
3
Carboniferous
3
Devonian
3
From 10 thousand years ago
3
1802-1889
2
1876-1948
2
Cretaceous
2
From 2 to 65 million years ago
2
Ordovician
2
Triassic
2
1001-1300
1
1755-1826
1
19th century
1
20th century
1
Cenozoic
1
From 10 thousand to 10 million years ago
1
From 10 to 40 million years ago
1
From 230 to 280 million years ago
1
From 230 to 570 million years ago
1
Jurassic
1
Neogene
1
Oligocene
1
Pléistocène
1
Pliocene
1
trzeciorzęd
1