| Eon | % Correct |
|---|---|
| Jurassic | 93%
|
| Triassic | 89%
|
| Cretaceous | 81%
|
| Cambrian | 80%
|
| Permian | 71%
|
| Mesozoic | 70%
|
| Devonian | 68%
|
| Paleozoic | 65%
|
| Silurian | 64%
|
| Carboniferous | 63%
|
| Holocene | 62%
|
| Cenozoic | 61%
|
| Ordovician | 61%
|
| Paleogene | 59%
|
| Hadean | 58%
|
| Quaternary | 55%
|
| Neogene | 53%
|
| Pleistocene | 53%
|
| Archean | 51%
|
| Phanerozoic | 46%
|
| Proterozoic | 46%
|
| Paleocene | 44%
|
| Miocene | 42%
|
| Eocene | 38%
|
| Lower/Early | 38%
|
| Middle | 37%
|
| Upper/Late | 37%
|
| Pliocene | 36%
|
| Oligocene | 35%
|
| Anthropocene | 33%
|
| Mississippian | 31%
|
| Neoproterozoic | 31%
|
| Neoarchean | 30%
|
| Paleoarchean | 30%
|
| Paleoproterozoic | 30%
|
| Mesoarchean | 29%
|
| Mesoproterozoic | 29%
|
| Pennsylvanian | 28%
|
| Ediacaran | 26%
|
| Eoarchean | 25%
|
| Cryogenian | 23%
|
| Tonian | 18%
|
| Siderian | 16%
|
| Rhyacian | 14%
|
| Stenian | 14%
|
| Calymmian | 12%
|
| Ectasian | 12%
|
| Orosirian | 12%
|
| Statherian | 12%
|
| Llandovery | 9%
|
| Wenlock | 9%
|
| Guadalupian | 8%
|
| Ludlow | 8%
|
| Pridoli | 8%
|
| Series 2 | 8%
|
| Terreneuvian | 8%
|
| Furongian | 7%
|
| Miaolingian | 7%
|
| Cisuralian | 6%
|
| Lopingian | 6%
|