| Era | % Poprawnych |
|---|---|
| jura | 92%
|
| kreda | 92%
|
| trias | 91%
|
| mezozoik | 85%
|
| paleozoik | 85%
|
| czwartorzęd | 81%
|
| kambr | 81%
|
| karbon | 81%
|
| kenozoik | 81%
|
| ordowik | 81%
|
| dewon | 79%
|
| sylur | 79%
|
| perm | 74%
|
| prekambr | 74%
|
| archaik | 70%
|
| neogen | 68%
|
| plejstocen | 68%
|
| holocen | 66%
|
| paleogen | 66%
|
| fanerozoik | 64%
|
| proterozoik | 58%
|