SimilarityRank
pliocene 0.883 49115
ordovician 0.883 22032
glaciation 0.878 30769
permian 0.872 18568
miocene 0.867 31987
eocene 0.863 39949
post-glacial 0.860 38769
palaeozoic 0.855 17635
triassic 0.855 19513
cretaceous 0.852 15845
mesozoic 0.848 21369
proterozoic 0.846 68404
ice-sheet 0.844 47735
interglacial 0.844 34937
precambrian 0.842 28924
silurian 0.840 24411
devonian 0.836 17422
oligocene 0.836 52381
periglacial 0.833 45595
cenozoic 0.830 76640
refugium 0.829 66085
mid-to 0.827 97597
glaciate 0.825 54958
archaean 0.823 68387
orogeny 0.822 34390