SimilarityRank
permian 0.895 18568
triassic 0.885 19513
silurian 0.882 24411
cretaceous 0.880 15845
eocene 0.878 39949
devonian 0.873 17422
precambrian 0.871 28924
ordovician 0.866 22032
palaeozoic 0.864 17635
crinoid 0.854 42572
ammonoid 0.849 43985
pleistocene 0.848 19850
miocene 0.841 31987
oligocene 0.837 52381
brachiopod 0.837 24768
carboniferous 0.835 10443
dicynodont 0.832 72125
unconformably 0.830 99989
nautiloid 0.828 49926
metamorphic 0.828 30217
cainozoic 0.827 58574
proterozoic 0.825 68404
glaciate 0.824 54958
breccia 0.821 37637
glossopteris 0.820 77276