Related by context. Frequent words. (Click for all words.) 68 theropod 68 Diplodocus 67 carnivorous dinosaurs 67 tyrannosaur 66 theropods 66 Indohyus 65 feathered dinosaurs 65 tyrannosaurs 65 hadrosaur 64 trilobites 64 tetrapod 63 Ardipithecus 63 H. erectus 62 Ardipithecus ramidus 62 Archaeopteryx 62 arthropod 61 pterosaur 61 T rex 61 toothed whales 61 triceratops 61 Tyrannosaurus 61 morphologically 60 Tiktaalik 60 T. rex 60 mammals 60 Allosaurus 60 marine invertebrates 60 herbivorous 60 vertebrates 60 arthropods 60 Neandertal 60 sauropods 60 hominin 60 crocodilians 60 Australopithecus 59 primate species 59 hominins 59 Columbian mammoth 58 sauropod 58 vertebrate 58 plesiosaur 58 subfamily 58 saber toothed cat 58 velociraptors 58 mammal 58 dinosaurs 58 mitochondrial genome 58 taxon 58 tetrapods 57 Tyrannosaurus rex 57 hominid 57 Triceratops 57 phyla 57 LB1 57 genus Homo 57 fossils 57 marine reptile 57 Stegosaurus 57 fossilized bones 57 Homo sapiens 57 tyrannosaurus rex 57 marine reptiles 57 dinosaur 57 prokaryotes 56 stickleback 56 multicellular organisms 56 amino acid sequences 56 fossilized remains 56 wooly mammoth 56 Velociraptor 56 dinos 56 Late Cretaceous 56 mammalian species 56 Homo habilis 56 pterodactyls 56 stegosaurus 56 morphologies 56 anthropoids 56 vertebrate species 56 platypuses 56 sea anemones 56 mammalian 56 baleen whales 55 diatom 55 forelimbs 55 single celled organisms 55 Longrich 55 taxa 55 billed dinosaur 55 velociraptor 55 Neandertals 55 clades 55 Tyrannosaurus Rex 55 dinosaur skeletons 55 canine teeth 54 mammoths 54 carnivores 54 fossilized 54 multicellular 54 mastodons 54 thylacine