| Similarity | Rank | |
|---|---|---|
| interglacial | 0.882 | 34937 |
| pleistocene | 0.878 | 19850 |
| cenozoic | 0.877 | 76640 |
| post-glacial | 0.877 | 38769 |
| ice-sheet | 0.867 | 47735 |
| pliocene | 0.856 | 49115 |
| palaeozoic | 0.856 | 17635 |
| orogeny | 0.855 | 34390 |
| eocene | 0.850 | 39949 |
| permian | 0.849 | 18568 |
| oligocene | 0.847 | 52381 |
| hercynian | 0.846 | 39211 |
| metamorphism | 0.845 | 50754 |
| archaean | 0.845 | 68387 |
| cainozoic | 0.845 | 58574 |
| deglaciation | 0.838 | 67146 |
| ordovician | 0.834 | 22032 |
| pangaea | 0.831 | 62891 |
| periglacial | 0.829 | 45595 |
| mid-to | 0.828 | 97597 |
| miocene | 0.827 | 31987 |
| tectonised | 0.827 | 99784 |
| volcanism | 0.824 | 33218 |
| permo-triassic | 0.823 | 47805 |
| holocene | 0.820 | 65548 |