| Era | % Poprawnych |
|---|---|
| jura | 93%
|
| kreda | 93%
|
| trias | 91%
|
| mezozoik | 85%
|
| paleozoik | 85%
|
| kambr | 81%
|
| karbon | 81%
|
| kenozoik | 81%
|
| ordowik | 81%
|
| czwartorzęd | 80%
|
| dewon | 80%
|
| sylur | 80%
|
| perm | 74%
|
| prekambr | 74%
|
| archaik | 70%
|
| neogen | 69%
|
| paleogen | 67%
|
| plejstocen | 67%
|
| fanerozoik | 65%
|
| holocen | 65%
|
| proterozoik | 57%
|