130,000,000 B.C.
65,000,000 B.C.
8,000 B.C.
1944
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2097
2204
In the real world[]
The K.T. asteroid strikes the Earth, causing the extinction of 65% of all life, including the dinosaurs.
In the Kaiju Multiverse's[]
- An asteriod hits the Earth, killing much of the planet's life. The population of the dinosaurs and other prehistoric creatures is reduced, but many species do not surrender to extinction. Across the planet, many small populations of such species as plesiosaurs, pterosaurs (including pteranodons), and even some dinosaurs (including the ankylosaurus and a theropod species known as the "Godzillasaurus") continue to survive and breed.
- The three-headed space monster Desghidorah arives on Earth and begins to absorb the life energy from the planet. The dominant race of the world, small humanoids called the Elias, attempt to fight back along side a race of giant insects called Mothras. Eventually, Desghidorah is defeated and sealed inside the Earth, but the Elias are left all but extinct, and only one Mothra remaines alive.
- An alien spacecraft crashes into the sea, and the ship's crew, squid-like creatures called the Millenians, remain trapped within, unable to opperate the ship without light from the sun.