Related by context. Frequent words. (Click for all words.) 55 flint tools 53 middens 51 microfossils 50 fossils 49 midden 48 coprolites 48 marine sediments 47 sediments 47 Neandertal 46 lavas 46 dinosaur fossils 46 archaeological finds 46 Burgess Shale 46 landforms 46 lake sediments 46 feathered dinosaurs 46 landmasses 45 prehistoric 45 rock outcrop 45 dinosaur footprints 45 limestone caves 45 trilobites 45 Late Cretaceous 45 rock outcrops 45 Skeletal remains 45 red ocher 44 Oetzi 44 fossilized 44 Radiocarbon dating 44 excavated 44 sediment cores 44 fossilized bones 44 stromatolites 44 flints 44 neolithic 43 Meridiani 43 dinosaur fossil 43 Paleolithic 43 fossilized remains 43 hydrothermal vent 43 Iron Age 43 Bronze Age 43 #BC [003] 43 artefacts 43 glaciated 42 chert 42 continental crust 42 radiocarbon dating 42 Neolithic 42 sedimentary rock 42 hominins 42 Beringia 42 Domesday Book 42 sediment samples 42 interglacial period 42 hadrosaur 42 moraines 42 wooly mammoth 41 limestones 41 royal mummies 41 skull fragments 41 foraminifera 41 specimens 41 H. erectus 41 hominin 41 mammoths 41 Paleocene 41 Homo habilis 41 plesiosaur 41 radiocarbon 41 Etruscans 41 dinosaur bones 41 fossil 41 skeletal remains 41 ancient artefacts 41 limestone cave 41 excavations 41 Archaeopteryx 41 antiquity 41 barrens 41 prehistory 41 tetrapods 41 burial mounds 40 relics 40 calcareous 40 Soil samples 40 stalagmite 40 Carboniferous 40 quarried 40 dinosaur skeletons 40 archaeologists 40 alluvial deposits 40 Ardipithecus 40 Neanderthals 40 arrowheads 40 Neandertals 40 mummified 40 paleo 40 agates 40 anatomically modern 40 marine reptiles