| Similarity | Rank | |
|---|---|---|
| Triassic | 0.932 | 93483 |
| Cretaceous | 0.923 | 59402 |
| Cambrian | 0.850 | 62691 |
| Pleistocene | 0.841 | 71860 |
| Permian | 0.835 | 68603 |
| sedimentary | 0.766 | 47805 |
| shales | 0.757 | 97010 |
| Holocene | 0.750 | 86928 |
| fossils | 0.747 | 23150 |
| metamorphic | 0.736 | 76409 |
| calcareous | 0.731 | 93129 |
| Jurassic | 0.730 | 32117 |
| Sandstone | 0.728 | 72094 |
| Fossils | 0.727 | 91035 |
| sediments | 0.721 | 31409 |
| geologic | 0.715 | 35099 |
| Limestone | 0.714 | 47555 |
| Archaic | 0.711 | 81589 |
| geological | 0.708 | 19326 |
| outcrops | 0.708 | 57445 |
| intertidal | 0.704 | 84600 |
| Neolithic | 0.699 | 43645 |
| outcrop | 0.698 | 58409 |
| prehistoric | 0.690 | 22958 |
| limestone | 0.688 | 15497 |