Geologic Time timeline.

Period: Jan 1, 2015 to Nov 17, 2015

Precambrian Time
Feb 9, 2015

First crustal rocks form

Precambrian Time
Mar 30, 2015

Earths surface is cool enough for liquid water
Apr 12, 2015

First known unicellular life appears
Jul 14, 2015

Earths atmosphere starts to become oxygen rich
Aug 31, 2015

First known multicellar life appears
Sep 29, 2015

First fungi appear
Nov 15, 2015

First shelled organisms, such as arthopods and mollusks, appear.
Period: Nov 17, 2015 to Dec 10, 2015

Paleozoic Time
Nov 19, 2015

First possible vertabrates appear
Nov 21, 2015

Modern, oxygen-rich atmosphere has formed.
Nov 24, 2015

First land appears
Nov 28, 2015

First anthropods appear on land
Nov 30, 2015

First amphibians appear
Dec 2, 2015

First reptiles appear
Dec 5, 2015

Formation of pangea is complete
Dec 9, 2015

Permian mass extinction results from major enviromental changes
Period: Dec 10, 2015 to Dec 25, 2015

Mesozoic Time
Dec 11, 2015

Pangea begins to break apart
Dec 13, 2015

First mammals appear
Dec 16, 2015

First primitive birds appear
Dec 19, 2015

First flowering plants (angiosperms) appear
Dec 21, 2015

First modern birds appear
Dec 25, 2015

The last dinosaurs become extinct. Catastarphic merteorite impct occurs.
Dec 25, 2015

Modern mammal famlilies, including whales, carnivores, hoofed animals, and primates have apeared.
Period: Dec 25, 2015 to Dec 31, 2015

Cenozoic Time
Dec 26, 2015

First grasses appear
Dec 27, 2015

India collides with asai and antartica drifts over the south pole
Dec 28, 2015

First hominids (early human ancestors appear)
Dec 29, 2015

Modern ice age begins
Dec 31, 2015

Modern humans appear

Precambrian Time

First crustal rocks form

Earths surface is cool enough for liquid water

First known unicellular life appears

Earths atmosphere starts to become oxygen rich

First known multicellar life appears

First fungi appear

First shelled organisms, such as arthopods and mollusks, appear.

Paleozoic Time

First possible vertabrates appear

Modern, oxygen-rich atmosphere has formed.

First land appears

First anthropods appear on land

First amphibians appear

First reptiles appear

Formation of pangea is complete

Permian mass extinction results from major enviromental changes

Mesozoic Time

Pangea begins to break apart

First mammals appear

First primitive birds appear

First flowering plants (angiosperms) appear

First modern birds appear

The last dinosaurs become extinct. Catastarphic merteorite impct occurs.

Modern mammal famlilies, including whales, carnivores, hoofed animals, and primates have apeared.

Cenozoic Time

First grasses appear

India collides with asai and antartica drifts over the south pole

First hominids (early human ancestors appear)

Modern ice age begins

Modern humans appear