Era
Cretaceous
5
Early works to 1800
5
Paleozoic
5
Cenozoic
4
Eocene
4
1733-1804
3
Crétacé
3
Devonian
3
Dévonien
3
From 345 to 405 million years ago
3
From 65 to 140 million years ago
3
Silurian
3
1892-1953
2
1981
2
1982
2
1983
2
1988
2
1991
2
1993
2
2003
2
21st century
2
Éocène
2
From 230 to 280 million years ago
2
From 230 to 570 million years ago
2
From 40 to 55 million years ago
2
Holocene
2
Ordovician
2
Paléozoïque
2
Permian
2
Permien
2
Pleistocene
2
Precambrian
2
Silurien
2
1540-1603
1
16th century
1
1732-1799
1
1776-1862
1
1784-1865
1
1791-1871
1
1792-1871
1
1822-1884
1
1828-1886
1
1829-1896
1
1838-1904
1
1866-1919
1
1867-1952
1
1879
1
1879-1955
1
1881-1957
1
18th Cent
1
more ...