Era
1852-1934
5
1886-1948
2
1948-
2
1957-2003
2
1976
2
1497?-1543
1
1738-1822
1
1744-1829
1
1768-1816
1
1769-1859
1
1872-1970
1
1874
1
1908-2003
1
1910-2008
1
1911-1967
1
1912-1954
1
1921-2005
1
1924-
1
1938-2011
1
1961-
1
1965-2003
1
1974
1
19th century
1
20th century
1
Cenozoic
1
Cretaceous
1
Geschichte
1
Paleozoic
1
To 1500
1
Triassic
1