What Happened Before
Earth and Space
75 Meters
Sandstone – Desert, Riverbank (Gray Tiles)
1
What Happened Before
Earth and Space
80 Meters
Shale – Lakebed (Bone Tiles)
2
What Happened Before
Earth and Space
85 Meters
Shale – Swamp, Lakebed (Bone Tiles)
3
What Happened Before
Earth and Space
90 Meters
Coal – Swamp (Black Tiles)
4
What Happened Before
Earth and Space
95 Meters
Limestone – Shallow Sea, Beach, Reef
(White Tiles)
5
What Happened Before
Earth and Space
100 Meters
Siltstone – Deep Ocean (Blue Tiles)
6