Related by context. Frequent words. (Click for all words.) 68 paleoclimate 64 lake sediments 64 biogeochemical 62 marine sediments 62 microfossils 60 faunal 60 sediment cores 60 Cenozoic 59 geomorphology 59 deglaciation 59 biogeography 59 systematics 58 terrestrial ecosystems 58 biogeochemistry 58 numerical modeling 57 radiocarbon dated 57 geologic 56 physicochemical 56 isotopic composition 56 microbial ecology 56 hydrologic cycle 56 ground truthing 55 bathymetry 55 metagenomic 55 nitrogen fixation 55 ecologies 55 Palaeolithic 55 isotope ratios 55 elemental composition 55 depositional 54 paleontological 54 temperate forests 54 preserved fossils 54 foraminifera 54 Early Cretaceous 54 phylogeny 54 morphological 54 radiocarbon 53 phylogenetic 53 prehistory 53 spatial scales 53 Quaternary 53 paleo 53 bathymetric 53 Late Cretaceous 53 fossils 53 radiocarbon dating 53 Radiocarbon dating 53 InSAR 53 geoid 52 taxa 52 mineralogy 52 Dry Valleys 52 glacial retreat 52 ethnological 52 hydrothermal activity 52 Geochemistry 52 fossilization 52 isotopic 52 glaciations 52 Mesolithic 52 Pliocene 52 Topographic 52 fossil specimens 52 hydrogeologic 52 morphology 52 phenotyping 52 geological 52 alluvial deposits 51 calcareous 51 geochemical 51 sulfide minerals 51 remotely sensed 51 aragonite 51 hydrological cycle 51 Willerslev 51 relict 51 landforms 51 morphologies 51 oxygen isotopes 51 chronologies 51 El Niño Southern Oscillation 51 primate evolution 51 diatom 51 Pleistocene 51 geochemistry 51 hydrothermal vent 51 Archaean 51 fossil 50 plankton blooms 50 evolutionary origins 50 igneous rocks 50 tetrapod 50 middens 50 Biogeography 50 deltaic 50 biogenic 50 Late Triassic 50 atmospheric methane 50 inhabitation 50 comparative genomics