Era
21st century
6
1991-
4
1946-
3
2000-
3
20th century
3
1947-
2
1950-
2
1492-
1
1844-1900
1
1883-1950
1
1896-1980
1
1904-1980
1
1932-1999
1
1933-
1
1937-
1
1941-
1
1942-2008
1
1948-1999
1
1949-
1
1953-
1
1974-2009
1
1991-2016
1
19th century
1
476-1492
1
Holocene
1
Paleogene
1
Pleistocene
1
Pliocene
1
Quaternary
1