Related by context. Frequent words. (Click for all words.) 57 Dmanisi 56 relict 56 fossil specimens 54 Palaeolithic 53 Radiocarbon dating 53 Atapuerca 52 flint tools 52 paleontological 51 horned dinosaur 51 radiocarbon dated 51 archeological excavations 50 archaeological excavations 50 Neandertal 50 placer deposits 50 igneous rocks 50 Kola Peninsula 50 cliff dwellings 50 Bronze Age 50 Harappan 49 neolithic 49 stromatolites 49 excavated 49 Elamite 49 Neolithic 49 Lake Vostok 49 amphorae 49 Columbian mammoth 49 prehistoric 49 mud volcanoes 49 dinosaur fossils 49 dinosaur footprints 49 Thracian 49 temperate forests 49 Inca Empire 49 fossils 48 limestone caves 48 archaeological 48 Thracians 48 middens 48 archeological 48 archaeological finds 48 Lower Cretaceous 48 dinosaur fossil 48 Burgess Shale 48 excavations 48 Mesolithic 48 alluvial deposits 48 zircons 48 Paleocene 47 Iron Age 47 pre Incan 47 Carboniferous 47 basalt 47 coprolites 47 sandstone formations 47 Jurassic Period 47 burial mounds 47 limestone cave 47 Harappa 47 limestone formations 47 breccia pipes 47 Tarim Basin 47 Sassanid 47 western Siberia 47 Fertile Crescent 47 Otzi 46 gossans 46 fossilized bones 46 lake sediments 46 rock outcrops 46 deciduous forests 46 feathered dinosaurs 46 Caucasus Mountains 46 Danube delta 46 Etruscans 46 microfossils 46 Beringia 46 metamorphic rocks 46 Olmecs 46 Archeological 46 geological formations 46 calcareous 46 Quaternary 46 lava tubes 46 taiga 46 snail shells 46 Siberian permafrost 46 specimens 45 Fossilized 45 archeologists 45 geologic formations 45 hadrosaur 45 faunal 45 primeval forest 45 sediment cores 45 Yakut 45 Late Cretaceous 45 subarctic 45 Archaean 45 radiometric anomaly 45 prehistory