Rectangles

1

Hadean Eon (Earth’s Formation)

Sverre Knut Johansen

2

Archean Eon (Life Beginning and Photosynthesis)

Sverre Knut Johansen [feat. Robert Rich]

3

Proterozoic Eon (Oxygen Crisis and First Snowball Earth)

Sverre Knut Johansen [feat. Robert Rich & David Helpling]

4

Paleozoic Era (Transformation - Animals and Plants Emanate onto Land)

Sverre Knut Johansen [feat. Robert Rich]

5

Mesozoic Era (First Mammals and Birds)

Sverre Knut Johansen [feat. Robert Rich & David Helpling]

6

Cenozoic Era (Climate changes; Homo Habilis and Evolution)

Sverre Knut Johansen [feat. Robert Rich]

7

Anthropocene (Humans Impact Earth’s Geology and Ecosystems)

Sverre Knut Johansen [feat. Robert Rich]

8

Precambrian (Earth's Geologic Time Scale Impact)

Sverre Knut Johansen [feat. Robert Rich]

Precambrian