SimilarityRank
Pleistocene 0.885 71860
Cretaceous 0.810 59402
Triassic 0.793 93483
glacial 0.758 30580
Devonian 0.750 99765
geologic 0.748 35099
permafrost 0.723 59965
geological 0.721 19326
Glacial 0.718 92463
climatic 0.712 23497
radiocarbon 0.710 83689
sedimentary 0.707 47805
extinctions 0.706 71406
sea-level 0.697 63584
biota 0.694 95999
crustal 0.689 98623
Permian 0.688 68603
sediments 0.688 31409
tectonic 0.666 44538
seafloor 0.664 63764
Neolithic 0.663 43645
hydrological 0.661 62436
precipitation 0.658 20056
geochemical 0.655 80897
Archaic 0.653 81589