Related by context. Frequent words. (Click for all words.) 58 trilobites 58 dinosaurs 56 tyrannosaur 55 T. rex 54 T rex 54 Archaeopteryx 54 dinosaur 53 Neandertals 53 prehistoric 53 fossils 52 carnivorous dinosaurs 52 Cretaceous Period 52 Homo sapiens 52 triceratops 52 tyrannosaurs 52 vertebrate 51 pterosaur 51 plesiosaur 51 fossilized remains 51 Triceratops 51 mammal 51 mammals 51 fossil 50 megafauna 50 Tyrannosaurus 50 sauropods 50 Tyrannosaurus rex 50 Velociraptor 50 pterosaurs 49 dinos 49 mastodons 49 Longrich 49 mammalian species 49 Neanderthals 49 hominins 49 theropods 49 woolly mammoth 48 Mammoths 48 baleen whales 48 Tiktaalik 48 hominin 48 mammoths 48 paleontologists 48 Paleolithic 48 vertebrates 48 velociraptor 47 Late Cretaceous 47 palaeontologists 47 evolutionary biologists 47 hominid 47 thylacine 47 woolly mammoths 47 pterodactyls 46 palaeontology 46 Tyrannosaurus Rex 46 fossilized bones 46 dinosaurs roamed 46 Neanderthal 46 Ardipithecus 46 arthropod 46 dino 46 genus Homo 46 flightless 46 arthropods 46 evolutionary 46 fossilized 46 flightless birds 46 mammalian 46 sauropod 46 Mesozoic 46 Homo habilis 46 Mammals 45 homo sapiens 45 Pleistocene 45 herbivore 45 lungfish 45 Australopithecus 45 Homo erectus 45 hominids 45 diatom 45 dinosaur skeletons 45 brontosaurus 45 paleoanthropologist 45 marsupials 44 stegosaurus 44 mastodon 44 tetrapods 44 diatoms 44 moa 44 pterodactyl 44 Vertebrate Paleontology 44 paleontology 44 Tasmanian tiger 44 herbivorous 44 Homo floresiensis 44 saber toothed cats 44 forelimbs 44 morphologies 44 T. Rex 44 prehistory 44 canine teeth