Era
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1897-1955
1
18th Century
1
18th century
4
1902-1979
1
1904-1995
1
1906-1975
1
1912-
1
1912-1954
1
1916-2004
1
1924-1994
1
1926-1996
1
1927-
1
1928-
1
1928-2014
1
1931-
2
1934-
1
1934-1996
1
1938-
1
1942-
1
1943-
1
1954-2011
1
19th century
6
20th century
7
21st century
1
287-212 a.C.
1
938-2017
1
Cambrian
3
Carboniferous
2
Cretaceous
6
Cretácico
1
Historia
1
Holocene
1
Holoceno
1
Jurassic
2
Jurásico
2
Miocene
2
Neogene
3
Ordovician
1
Ordovícico
1
Paleozoic
3
Philip II,
1
Pliocene
1
Plioceno
1
Proterozoic
1
Quaternary
2
S XVII
1
S XX
1
S XXI
1
Siglo 17
1
Siglo 19
2
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