| Period | % Correct |
|---|---|
| Jurassic | 91%
|
| Triassic | 85%
|
| Cambrian | 76%
|
| Cretaceous | 71%
|
| Mesozoic | 68%
|
| Paleozoic | 62%
|
| Devonian | 60%
|
| Permian | 58%
|
| Cenozoic | 55%
|
| Silurian | 55%
|
| Carboniferous | 54%
|
| Hadean | 51%
|
| Ordovician | 51%
|
| Archean | 45%
|
| Quaternary | 45%
|
| Proterozoic | 44%
|
| Phanerozoic | 43%
|
| Neogene | 42%
|
| Paleogene | 42%
|
| Neoproterozoic | 24%
|
| Mesoproterozoic | 23%
|
| Paleoproterozoic | 23%
|
| Mesoarchean | 22%
|
| Neoarchean | 22%
|
| Paleoarchean | 22%
|
| Ediacaran | 21%
|
| Eoarchean | 20%
|
| Cryogenian | 19%
|
| Tonian | 15%
|
| Siderian | 13%
|
| Rhyacian | 12%
|
| Stenian | 12%
|
| Calymmian | 11%
|
| Orosirian | 11%
|
| Ectasian | 10%
|
| Statherian | 10%
|