Related by context. Frequent words. (Click for all words.) 65 Columbian mammoth 62 tyrannosaur 60 theropod 60 Cretaceous Period 59 hadrosaur 59 plesiosaur 58 sauropod 58 feathered dinosaurs 58 T. rex 58 carnivorous dinosaurs 58 megafauna 57 Tyrannosaurus rex 57 sauropods 57 tyrannosaurus rex 57 dinosaur 57 dinosaur fossil 56 tyrannosaurs 56 H. erectus 56 hominid 56 ground sloths 56 Brachiosaurus 56 marine reptiles 56 dinosaurs 55 Burgess Shale 55 pterosaur 55 theropods 55 Indohyus 55 Australopithecus 55 fossil 55 dinosaur skeletons 55 billed dinosaur 55 hominins 55 Triceratops 55 wooly mammoth 54 woolly mammoths 54 Longrich 54 fossilized remains 54 herbivore 54 fossils 54 Late Cretaceous 54 mammoths 54 dinosaur fossils 54 fossilized bones 54 Tiktaalik 53 triceratops 53 hominids 53 trilobites 53 Stegosaurus 53 mastodon 53 Beringia 53 hominin 53 mastodons 52 prehistoric 52 T rex 52 Cambrian explosion 52 Ardipithecus 52 Tyrannosaurus 52 mammal 52 Homo erectus 52 Cretaceous 51 Homo floresiensis 51 velociraptor 51 African savanna 51 Mesozoic 51 crocodilians 51 Paleocene 51 dinos 51 temperate forests 51 lava tubes 51 Neandertals 51 woolly mammoth 51 mammals 50 Homo habilis 50 Mammoths 50 bipedalism 50 Australopithecus afarensis 50 herbivorous 50 interglacial period 50 Pleistocene era 50 Pleistocene 50 stegosaurus 50 Homo sapiens 50 dinosaur footprints 50 Archaeopteryx 50 anthropoids 49 Neandertal 49 genus Homo 49 Tyrannosaurus Rex 49 tetrapod 49 supercontinent 49 dinosaur bones 49 Poinar 49 microfossils 49 stromatolites 49 leatherback turtle 49 Velociraptor 49 brontosaurus 49 fossilized 49 Eocene 49 coprolites 49 Denisovans