Related by context. Frequent words. (Click for all words.) 66 LB1 63 Archaeopteryx 62 mandible 62 H. erectus 62 tetrapod 61 theropod 61 Tiktaalik 60 hominin 60 Indohyus 60 maxillary 60 hadrosaur 58 Neandertal 58 otoliths 57 anatomical structures 57 hominid 57 tyrannosaur 57 hominins 56 tetrapods 56 morphologies 56 Australopithecus 56 pterosaur 56 skull 56 fossa 56 theropods 56 canine teeth 56 anthropoids 56 forelimb 56 morphologically 55 mandibular 55 Ardipithecus 55 morphologic 55 morphology 55 corpus callosum 55 skull fragments 55 Neandertals 55 morphological 54 forelimbs 54 tyrannosaurus rex 54 soft tissues 54 melanosomes 53 Nigersaurus 53 mandibles 53 feathered dinosaurs 53 collagen fibers 53 jawbones 53 sauropods 52 Otzi 52 aortas 52 sauropod 52 mitochondrial genome 52 Late Cretaceous 52 hominids 52 genus Homo 52 Columbian mammoth 52 pectoral fins 52 anatomically 52 aortic arch 52 mammalian brain 52 bony 52 fossils 52 occipital 52 cranium 52 Homo floresiensis 52 pharynx 52 pharyngeal 51 stromal 51 pterosaurs 51 humerus 51 T. rex 51 sensory organs 51 fossilized 51 curvatures 51 Homo erectus 51 vertebrate 51 Brachiosaurus 51 carnivorous dinosaurs 51 Neanderthal 51 femurs 51 afarensis 51 pelvic bones 51 lava tubes 51 molar 51 ventral 51 bones 51 vertebrates 51 Denisovans 51 phylogeny 51 esophagus stomach 51 Australopithecus afarensis 51 skeletonized 50 Triceratops 50 marine invertebrates 50 sagittal 50 mouthparts 50 protrusion 50 resorption 50 anatomical 50 cortical bone 50 Homo habilis 50 Radiocarbon dating 50 bipedalism