| Hint | Answer | % Correct |
|---|---|---|
| 2nd major event | Beginning of Great Oxidation Event | 100%
|
| 2.5–1.6 billion years ago | Paleoproterozoic Era | 100%
|
| 2.5–2.3 billion years ago | Siderian Period | 100%
|
| major event 5 | Avalon explosion (270 species) | 0%
|
| major event 4 | Baykonurian Glaciation | 0%
|
| 3rd major event | Beginning of Huronian Glaciation | 0%
|
| 1st major event | Beginning of the "Boring Billion" | 0%
|
| major event | Breakup of "Columbia" | 0%
|
| 1st major event | Breakup of "Kenorland" | 0%
|
| 1.6–1.4 billion years ago | Calymmian Period | 0%
|
| 720 - 635 million years ago | Cryogenian Period | 0%
|
| Biota 1 | Diskagma | 0%
|
| 1.4–1.2 billion years ago | Ectasian Period | 0%
|
| 635 - 538.8 million years ago | Ediacaran Period | 0%
|
| major event 1 | end of "Boring Billion" | 0%
|
| 1st major event | End of Great Oxidation Event | 0%
|
| 1st major event | End of Huronian Glaciation | 0%
|
| major event 2 | first sexually reproducing organisms | 0%
|
| major event 2 | first sponge-like animal "Otavia" | 0%
|
| 3rd major event | Formation of "Columbia" | 0%
|
| major event 1 | Formation of "Gondwana" | 0%
|
| major event 6 | Formation of ozone | 0%
|
| major event 1 | Formation of "Rodinia" | 0%
|
| Biota 2 | Francevillian biota | 0%
|
| major event 3 | Gaskiers Glaciation | 0%
|
| major event 2 | Lantian biota appears | 0%
|
| major event 2 | Marinoan Glaciation | 0%
|
| 1.6–1.0 billion years ago | Mesoproterozoic Era | 0%
|
| 1000 - 538.8 million years ago | Neoproterozoic Era | 0%
|
| 2.05–1.8 billion years ago | Orosirian Period | 0%
|
| 2.3–2.05 billion years ago | Rhyacian Period | 0%
|
| 1.8–1.6 billion years ago | Statherian Period | 0%
|
| 1.2–1.0 billion years ago | Stenian Period | 0%
|
| major event 1 | Sturtian Glaciation | 0%
|
| 1000 - 720 million years ago | Tonian Period | 0%
|
| 2nd major event | Vredefort impact | 0%
|