Related by context. Frequent words. (Click for all words.) 73 theropod 70 feathered dinosaurs 69 theropods 68 Diplodocus 66 Indohyus 65 pterosaur 63 tyrannosaur 63 Archaeopteryx 63 carnivorous dinosaurs 63 sauropod 62 tetrapod 62 crocodilians 62 toothed whales 62 triceratops 61 Tiktaalik 61 tyrannosaurus rex 61 trilobites 60 flightless bird 60 H. erectus 60 mammal 59 tetrapods 59 hadrosaur 59 arthropod 59 skink 59 subfamily 59 hominin 58 sauropods 58 marine reptile 58 Ardipithecus ramidus 58 Allosaurus 58 giant tortoise 58 anthropoids 58 tyrannosaurs 58 morphologically 58 forelimbs 58 fossilized remains 58 velociraptor 57 marine invertebrates 57 stickleback 57 herbivorous 57 thylacine 57 billed dinosaur 57 velociraptors 57 Neandertal 57 T. rex 57 dinosaur 57 Australopithecus 57 Brachiosaurus 57 sea anemones 57 genus Homo 57 Triceratops 57 Fossilized 57 Homo floresiensis 56 plesiosaur 56 hominins 56 clouded leopard 56 saber toothed cat 56 Stegosaurus 56 marine reptiles 56 Longrich 56 cassowary 56 hominid 56 pectoral fins 56 primate species 56 mammals 56 arthropods 56 taxon 56 Velociraptor 56 vertebrate species 56 pterosaurs 55 phylum 55 mitochondrial genome 55 giant tortoises 55 termite mounds 55 mantis shrimp 55 coelacanth 55 Tyrannosaurus rex 55 flightless birds 55 vertebrate 55 dinosaurs 55 Columbian mammoth 55 Ardipithecus 55 vertebrates 55 grebe 55 herbivore 55 narwhals 54 avian species 54 leatherback turtle 54 platypuses 54 Whale sharks 54 afarensis 54 Cretaceous Period 54 species 54 Late Cretaceous 54 genus 54 pipefish 54 martens 54 wooly mammoth 54 coprolites 54 Tyrannosaurus 54 ground sloths