Related by context. Frequent words. (Click for all words.) 63 theropod 63 Diplodocus 60 pterosaur 58 feathered dinosaurs 58 crocodilian 58 tyrannosaur 57 hominin 57 tyrannosaurus 57 Tiktaalik 57 Apatosaurus 56 Raptorex 56 sauropod 55 marine reptile 55 tetrapod 55 forelimbs 55 Allosaurus 55 carnivorous dinosaur 55 sauropods 55 mammal 55 T rex 55 Indohyus 55 Ardipithecus ramidus 55 herbivore 55 prehistoric 54 thunder thighs 54 hadrosaur 54 Fossilized 54 dinosaur 54 Brachiosaurus 54 sexual dimorphism 54 plesiosaur 54 Columbian mammoth 54 afarensis 53 H. erectus 53 forelimb 53 vertebrate 53 theropods 53 ammonites 53 wooly mammoth 53 hominid 53 crocodilians 52 Tyrannosaurus 52 arthropod 52 Longrich 52 erogenous zone 52 tyrannosaurus rex 52 Archaeopteryx 52 toothed whales 52 tyrannosaurs 51 horned dinosaur 51 triceratops 51 Tyrannosaurus rex 51 pectoral fins 51 mottled brown 51 fossilized 51 placental mammals 51 vertebrate animals 51 Australopithecus 51 anglerfish 51 Palaeolithic 51 erectus 51 herbivorous 50 Ardipithecus 50 evolutionary origins 50 lizard 50 T. rex 50 fossa 50 Neandertal 50 snail shells 50 fossilized bones 50 canine teeth 50 LB1 50 carnivorous dinosaurs 50 taxon 50 cassowary 50 subfamily 50 anthropoids 50 distinctive markings 50 genus Homo 49 primate evolution 49 bipedalism 49 upright posture 49 billed dinosaur 49 dinosaurs 49 mantis shrimp 49 ungulate 49 skink 49 tusk 49 vertebrates 49 Otzi 49 dinosaur fossil 49 anthropoid 49 fossilized remains 49 velociraptor 49 palaeontologists 49 mammals 48 saber toothed cat 48 fossil 48 mandible 48 anatomically 48 radiocarbon dated