Related by context. Frequent words. (Click for all words.) 66 theropod 61 tyrannosaur 61 hadrosaur 60 carnivorous dinosaur 60 Diplodocus 60 tyrannosaurus 59 arthropod 59 sauropods 58 Indohyus 58 theropods 57 crocodilian 57 H. erectus 57 sauropod 57 carnivorous dinosaurs 56 Raptorex 56 wooly mammoth 56 dinosaur 56 herbivore 56 horned dinosaur 56 tetrapod 55 tetrapods 55 ammonites 55 trackways 55 Apatosaurus 55 Ardipithecus ramidus 55 trackway 55 Columbian mammoth 54 Australopithecus 54 Nigersaurus 54 Fossilized 54 pterosaur 54 afarensis 53 mottled brown 53 termite mounds 53 millipede 53 Ardipithecus 53 trilobites 53 placental mammals 53 hominid 53 Homo habilis 53 crocodilians 52 giant tortoise 52 biped 52 herbivorous 52 feathered dinosaurs 52 Tiktaalik 52 Brachiosaurus 52 hominins 52 fossilized 52 Late Cretaceous 52 Allosaurus 51 Stegosaurus 51 hominin 51 fossil 51 Neandertal 51 erectus 51 quadruped 51 thylacine 51 Velociraptor 51 velociraptor 51 bipedalism 51 fossilized remains 51 stegosaurus 51 tyrannosaurus rex 51 garter snake 51 Archaeopteryx 51 pliosaur 50 hominids 50 mammal 50 Australopithecus afarensis 50 Neandertals 50 LB1 50 baleen whales 50 Jurassic Period 50 fossil specimens 50 snail shells 50 taxon 49 ungulate 49 arthropods 49 toothed whales 49 plesiosaur 49 coelacanth 49 skink 49 anthropoids 49 marine reptile 49 bushy tail 49 Tyrannosaurus 49 saber toothed cat 49 morphologically 49 Tyrannosaurus rex 49 temperate forests 49 microfossils 49 primate species 48 Paleocene 48 coprolites 48 Longrich 48 foraminifera 48 T. rex 48 marine reptiles 48 brontosaurus 48 Otzi