@ Dr. Heinz Lycklama
Conventional History Of The Earth
Cenozoic
4,000
0
500
1,000
1,500
2,000
2,500
3,000
4,500
3,500
Millions of Years BP
Precambrian
Paleozoic
Mesozoic
-Formation of the earth
-Crust forms
-First fossil prokaryotes
-Atmospheric Oxygen accumulation
(from cyanobacteria)
-First eukaryotic fossils
-First multicellular animal fossils
  Origin of life
Human fossils
Last dinosaur fossils
First reptile fossils
First land plant fossils
There are about 1050 atoms in the earth, and about 1080 atoms in the universe.