Related by context. Frequent words. (Click for all words.) 61 taxa 60 terrestrial ecosystems 58 morphological 57 species 57 systematics 56 phylogenetic 56 Late Cretaceous 56 phylogeny 56 microfossils 56 flora 55 biogeography 55 morphology 55 marine sediments 54 fauna 54 angiosperms 54 biota 54 flora fauna 53 lake sediments 53 marine invertebrates 53 morphologies 53 ecologies 52 landforms 52 paleontological 52 diatom 52 planktonic 52 avian species 52 Cretaceous Period 52 biodiversity hotspots 52 mammal species 51 speciation 51 fossils 51 vertebrate 51 foraminifera 51 megafauna 51 diatoms 51 lineages 51 biomes 51 microbiota 51 morphologically 50 biotic 50 isotopic composition 50 genetic diversity 50 Quaternary 50 primate species 50 Cambrian explosion 50 Carboniferous 50 temperate forests 50 flowering plants 50 geomorphology 50 otoliths 49 tetrapod 49 vertebrate species 49 evergreen forests 49 clades 49 feathered dinosaurs 49 nitrogen fixation 49 Harappan 49 trilobites 49 phenology 49 Pleistocene 49 paleoclimate 49 arthropod 49 benthic 49 chloroplast 49 Paleocene 49 bird species 49 abiotic 49 termite mounds 49 mammals 49 Burgess Shale 49 Eocene 48 calcareous 48 marine reptiles 48 alga 48 taxonomic 48 symbionts 48 carnivorous dinosaurs 48 mammalian species 48 multicellular 48 oceanic 48 morphologic 48 Fig. 1A 48 genetic variability 48 abundances 48 genera 48 eukaryotic 48 clonal 47 palaeontology 47 Cretaceous 47 prokaryotes 47 multicellular organisms 47 biodiverse 47 birdlife 47 biome 47 forest ecosystems 47 translocations 47 isotopic 47 stromatolites 47 hydrothermal activity 47 biosphere 47 Mesozoic