Era
1627-1705
1
1638?-1712
1
1666-1727
1
1667?-1719
1
1700-1799
1
1700-1899
1
1799-1847
3
1800-1999
1
1802-
1
1831-1899
6
1834-1919
1
1835-1919
2
1840-1897
5
1860-1890
1
1869-1945
1
1884-1934
2
1899-
1
18th century
5
1900-1999
1
1902-1984
1
1903-1972
1
1913-
2
1913-2009
1
1917-
1
1927-
1
1931-
1
1935-
1
1937-
1
1942-
1
1944-
2
1945-
1
1946-
2
1948-
1
1950-
2
1951-
1
1963-
2
1965-
2
1970-2000
1
19th century
8
2000-2020
3
2000-2099
1
2000-talet
1
2020-2040
1
20th century
6
21st century
2
Cambrian
6
Carboniferous
12
Cenozoic
23
Cretaceous
60
Devonian
15
more ...