Related by context. Frequent words. (Click for all words.) 50 fossils 45 dinosaur fossils 44 fossilized remains 43 specimens 42 fossil 41 fossilized 41 dinosaur bones 41 sauropods 40 diatoms 39 basalt 39 sediments 39 tusk 38 arthropods 37 lichens 37 dinosaurs 37 invertebrates 36 sedimentary rock 36 bones 36 artifacts 36 T. rex 36 radiocarbon dating 36 Paleontology 36 Tyrannosaurus rex 36 Natural History 36 artefacts 36 prehistoric 36 Natural History Museum 36 Fossils 35 mammals 35 paleontology 35 mammoths 34 prehistory 34 mastodon 34 dinosaur 34 Pleistocene 34 carvings 34 paleontologist 34 mummies 33 mammal 33 meteorites 33 Homo erectus 33 Paleontologists 33 excavated 33 vertebrates 33 hominids 33 Prehistoric 32 sedimentary rocks 32 mummified 32 Neanderthals 32 Archeological 32 species 32 mammal species 32 woolly mammoth 32 pterosaurs 31 arrowheads 31 skeletons 31 petroglyphs 31 archeologists 31 specimen 31 vertebrate 30 hominid 30 excavations 30 Archaeology 30 Triceratops 30 paleontologists 30 frog species 30 extinct species 30 Jurassic 30 flowering plants 30 Cretaceous 30 Ardi 30 volcanism 29 meteorite 29 Neanderthal 29 archaeologists 29 dino 29 salamanders 29 archaeological digs 29 reptiles 28 archaeological sites 28 Neolithic 28 Triassic 28 Eocene 28 archaeological 27 plate tectonics 27 archeological sites 27 skeleton 26 amphibians 26 Homo sapiens 26 mummy 26 geologically 26 Miocene 25 geological formations 25 archeology 25 relics 25 archeological 25 geologic 25 common ancestor 24 ancient artifacts 22 geology 19 geological