| Hint | Answer | % Correct |
|---|---|---|
| First Period of Fourth Eon | Cambrian | 86%
|
| Third Period of Fourth Eon | Cretaceous | 71%
|
| Second Period of Fourth Eon | Jurassic | 71%
|
| Second Era of Fourth Eon | Mesozoic | 71%
|
| First Period of Fourth Eon | Triassic | 71%
|
| Second Eon | Archean | 57%
|
| First Eon | Hadean | 57%
|
| Third Period of Fourth Eon | Quaternary | 57%
|
| Fifth Period of Fourth Eon | Carboniferous | 43%
|
| Fourth Period of Fourth Eon | Devonian | 43%
|
| Thirty-Eighth Epoch of Fourth Eon | Holocene | 43%
|
| First Era of Fourth Eon | Paleozoic | 43%
|
| Sixth Period of Fourth Eon | Permian | 43%
|
| Thirty-Seventh Epoch of Fourth Eon | Pleistocene | 43%
|
| Third/Current Era of Fourth Eon | Cenozoic | 29%
|
| Second Period of Fourth Eon | Neogene | 29%
|
| Second Period of Fourth Eon | Ordovician | 29%
|
| First Period of Fourth Eon | Paleogene | 29%
|
| Fourth/Current Eon | Phanerozoic | 29%
|
| Third Eon | Proterozoic | 29%
|
| Third Period of Fourth Eon | Silurian | 29%
|
| First Era of Second Eon | Eoarchean | 14%
|
| Thirty-Third Epoch of Fourth Eon | Eocene | 14%
|
| Eighth Epoch of Fourth Eon | Llandovery | 14%
|
| Third Era Second Eon | Mesoarchean | 14%
|
| Second Era of Third Eon | Mesoproterozoic | 14%
|
| Fourth Era of Second Eon | Neoarchean | 14%
|
| Third Era of Third Eon | Neoproterozoic | 14%
|
| Second Era of Second Eon | Paleoarchean | 14%
|
| First Era of Third Eon | Paleoproterozoic | 14%
|
| First Period of Third Eon | Calymmian | 0%
|
| (Informal) Second Epoch of Fourth Eon | Cambrian Series 2 | 0%
|
| Twenty-First Epoch of Fourth Eon | Cisuralian | 0%
|
| Second period of Third Eon | Cryogenian | 0%
|
| Second Period of Third Eon | Ectasian | 0%
|
| Third Period of Third Eon | Ediacaran | 0%
|
| Fourth Epoch of Fourth Eon | Furongian | 0%
|
| Twenty-Second Epoch of Fourth Eon | Guadalupian | 0%
|
| Twenty-Third Epoch of Fourth Eon | Lopingian | 0%
|
| Thirtieth Epoch of Fourth Eon | Lower Cretaceous | 0%
|
| Twelfth Epoch of Fourth Eon | Lower Devonian | 0%
|
| Twenty-Seventh Epoch of Fourth Eon | Lower Jurassic | 0%
|
| Fifteenth Epoch of Fourth Eon | Lower Mississippian | 0%
|
| Fifth Epoch of Fourth Eon | Lower Ordovician | 0%
|
| Eighteenth Epoch of Fourth Eon | Lower Pennsylvanian | 0%
|
| Twenty-Fourth Epoch of Fourth Eon | Lower Triassic | 0%
|
| Tenth Epoch of Fourth Eon | Ludlow | 0%
|
| Third Epoch of Fourth Eon | Miaolingian | 0%
|
| Thirteenth Epoch of Fourth Eon | Middle Devonian | 0%
|
| Twenty-Eighth Epoch of Fourth Eon | Middle Jurassic | 0%
|
| Sixteenth Epoch of Fourth Eon | Middle Mississippian | 0%
|
| Sixth Epoch of Fourth Eon | Middle Ordovician | 0%
|
| Nineteenth Epoch of Fourth Eon | Middle Pennsylvanian | 0%
|
| Twenty-Fifth Epoch of Fourth Eon | Middle Triassic | 0%
|
| Thirty-Fifth Epoch of Fourth Eon | Miocene | 0%
|
| Thirty-Fourth Epoch of Fourth Eon | Oligocene | 0%
|
| Third Period of Third Eon | Orosirian | 0%
|
| Thirty-Second Epoch of Fourth Eon | Paleocene | 0%
|
| Thirty-Sixth Epoch of Fourth Eon | Pliocene | 0%
|
| Eleventh Epoch of Fourth Eon | Pridoli | 0%
|
| Second Period of Third Eon | Rhyacian | 0%
|
| First Period of Third Eon | Siderian | 0%
|
| Fourth Period of Third Eon | Statherian | 0%
|
| Third Period of Third Eon | Stenian | 0%
|
| First Epoch of Fourth Eon | Terreneuvian | 0%
|
| First Period of Third Eon | Tonian | 0%
|
| Thirty-First Epoch of Fourth Eon | Upper Cretaceous | 0%
|
| Fourteenth Epoch of Fourth Eon | Upper Devonian | 0%
|
| Twenty-Ninth Epoch of Fourth Eon | Upper Jurassic | 0%
|
| Seventeenth Epoch of Fourth Eon | Upper Mississippian | 0%
|
| Seventh Epoch of Fourth Eon | Upper Ordovician | 0%
|
| Twentieth Epoch of Fourth Eon | Upper Pennsylvanian | 0%
|
| Twenty-Sixth Epoch of Fourth Eon | Upper Triassic | 0%
|
| Ninth Epoch of Fourth Eon | Wenlock | 0%
|