Tijdperk
Cretaceous
6
Cambrian
3
Neogene
3
Paleozoic
3
Quaternary
3
Carboniferous
2
Holocene
2
Jurassic
2
Jurásico
2
Miocene
2
1805-1877
1
1820-1895
1
1841-1922
1
18th century
1
20th century
1
Cretácico
1
From 10 thousand years ago
1
From 2 million years ago
1
Holoceno
1
Holocène
1
Ordovician
1
Ordovícico
1
Pliocene
1
Plioceno
1
Proterozoic
1
Quaternaire
1
Terciario
1
Tertiary
1
Triassic
1
Triásico
1