Eric Geologic time line

cambrian 570m- 500m

Feb 9, 1926

earliest record of marine life
part of the paliozioc era

paliozoic

Period: Feb 10, 1926 to Feb 10, 1974

ordivician 500m-435m

Feb 9, 1937

almost no oxygen
part of the paliozioc era

silurian 435m-395m

Feb 10, 1944

rained 90% of the ocean
part of the paliozioc era

Devonian 395m- 345m

Feb 10, 1953

armored fish
part of the paliozioc era

carboniferous 345m- 280m

Feb 10, 1964

abundent sharks
part of the paliozioc era

permian 280m- 225m

Feb 10, 1974

extinction of many marine animals
part of the paliozioc era

triassic 255m- 195m

Feb 10, 1983

earliest dinosur
part of the mesozoic

mesozoic

Period: Feb 10, 1983 to Feb 10, 2006

jurassic 195m- 136m

Feb 10, 1993

earliest birds
part of the mesozoic

cretaceous 136m- 65m

Feb 10, 2006

earliest flowering plants
part of the mesozoic

tertiary 65m- 1.8m

Feb 11, 2017

-earliest known mammals
-part of the cenozoic era

cenozoic era

Period: Feb 11, 2017 to May 11, 2017

quaternary 1.8m- presant

May 11, 2017

-large carnivores
-part of the cenozoic era