Timetoast Geology Timeline | Timetoast Timelines

Jan 1, 1923

Cambrian

Earliest record of marine life - Trilobites are dominant.
Period: Jan 1, 1923 to Jan 1, 1971

Paleozoic
Jan 1, 1934

Ordovician
Jan 1, 1941

Silurian
Jan 1, 1950

Devonian
Jan 1, 1961

Carboniferous
Jan 1, 1971

Permian
Jan 1, 1976

Triassic
Jan 1, 1986

Jurassic
Jan 1, 1999

Cretaceous
Jan 1, 2010

Tertiary
Apr 18, 2010

Quaternary