Related by context. Frequent words. (Click for all words.) 70 tetrapod 68 Tiktaalik 67 tetrapods 66 theropod 63 crocodilians 63 Archaeopteryx 63 Indohyus 62 marine invertebrates 61 morphologically 61 bipedalism 60 forelimbs 60 vertebrates 60 Ardipithecus 60 forelimb 60 hadrosaur 59 vertebrate 58 H. erectus 58 hominins 58 otoliths 58 pectoral fins 58 tyrannosaur 58 mammals 58 morphological 58 LB1 58 hind limbs 57 fossa 57 pterosaur 57 Australopithecus 57 trilobites 57 theropods 56 coelacanth 56 multicellular 56 planktonic 56 melanosomes 56 taxa 56 sticklebacks 56 hominin 55 baleen whales 55 quadruped 55 morphology 55 mouthparts 55 phylogenetic 55 asexual reproduction 55 pterosaurs 55 sauropods 55 Fig. 1A 54 evolutionarily 54 multicellular organisms 54 mammalian brain 54 hominid 54 foraminifera 54 hominids 54 morphologies 54 feathered dinosaurs 54 microfossils 54 morphogenesis 54 Caenorhabditis elegans 54 ventral 54 mandible 54 fossils 54 Late Cretaceous 53 homology 53 phylogeny 53 flagellum 53 dorsal fin 53 nonhuman primates 53 flagella 53 carnivorous dinosaurs 53 mammalian species 53 marine reptiles 53 sauropod 53 sea anemones 53 Australopithecus afarensis 53 subfamily 53 mammal 53 plesiosaur 53 herbivorous 53 arthropod 53 mammalian 53 diatom 53 diatoms 53 biped 52 trackway 52 morphologic 52 myoglobin 52 rhodopsin 52 tadpole 52 prokaryotes 52 greenish brown 52 stromatolites 52 Homo erectus 52 symbionts 52 phenotype 52 Homo habilis 52 Supplementary Fig 52 primate species 52 dorsal 52 anthropoids 52 locomotion 51 canine teeth 51 locomotor