| Similarity | Rank | |
|---|---|---|
| Triassic | 0.969 | 93483 |
| Devonian | 0.923 | 99765 |
| Pleistocene | 0.919 | 71860 |
| Permian | 0.850 | 68603 |
| sedimentary | 0.812 | 47805 |
| Holocene | 0.810 | 86928 |
| fossils | 0.792 | 23150 |
| sediments | 0.764 | 31409 |
| Cambrian | 0.762 | 62691 |
| shales | 0.759 | 97010 |
| Jurassic | 0.759 | 32117 |
| geologic | 0.746 | 35099 |
| metamorphic | 0.745 | 76409 |
| Fossils | 0.744 | 91035 |
| calcareous | 0.729 | 93129 |
| prehistoric | 0.724 | 22958 |
| geological | 0.722 | 19326 |
| hominids | 0.721 | 99822 |
| outcrops | 0.720 | 57445 |
| fossilized | 0.718 | 60659 |
| hominid | 0.716 | 82094 |
| erectus | 0.715 | 90493 |
| extinctions | 0.713 | 71406 |
| intertidal | 0.710 | 84600 |
| Archaic | 0.705 | 81589 |