Related by context. Frequent words. (Click for all words.) 65 Middle Awash 60 ichthyosaur 60 fossilized skull 58 hominid species 58 fossa 58 Liang Bua 58 Ötzi 57 hominid fossils 57 mammoth tusk 56 Australopithecus sediba 56 braincase 56 Columbian mammoth 56 Alemseged 55 maxilla 55 Bone fragments 55 Otzi 55 fossil specimens 55 subventricular zone 55 afarensis 54 Dmanisi 54 fossilized skeleton 54 transected 53 Radiocarbon dating 53 hominin 53 Toumai 53 flint tools 53 kipunji 53 hadrosaur 52 hominid 52 Paranthropus 52 Ardipithecus ramidus 52 Early Cretaceous 52 australopithecines 52 skull fragments 52 Olduvai Gorge 52 theropod 52 Australopithecus 52 ichthyosaurs 52 radiographically 51 Albertosaurus 51 Fossilized 51 Paleocene 51 Donald Johanson 51 Tiktaalik 51 otolith 51 H. erectus 51 Atapuerca 51 radiocarbon dated 51 invertebrate animals 51 allosaurus 50 homo erectus 50 tibia bone 50 Australopithecus afarensis 50 H. floresiensis 50 limbs kidneys 50 horned dinosaur 50 trabecular bone 50 Diplodocus 50 Omo River 50 Homo habilis 50 iliac crest 50 Jurassic Period 50 pellet lodged 50 pottery fragments 50 maxillary 50 pliosaur 50 H. sapiens 50 Celebes Sea 50 faunas 50 limestone cave 50 montane 49 megalodon 49 formalin fixed 49 Indohyus 49 excavated 49 Altai Mountains 49 ammonite 49 T.rex 49 isotopic analysis 49 Nile crocodile 49 retroperitoneal 49 Ventastega 49 fossilized remains 49 baleen whale 49 carnivorous dinosaur 49 Jurassic era 49 Pleistocene epoch 49 Areni 49 auklets 48 Lower Cretaceous 48 tortoise shells 48 Zhoukoudian 48 tetrapod 48 gastropod 48 peccary 48 Borrelia 48 hypoplasia 48 Homo antecessor 48 Palaeolithic 48 saber toothed cat 48 multiple skeletal fragments