Related by context. Frequent words. (Click for all words.) 63 pterosaur 63 theropod 62 Archaeopteryx 60 feathered dinosaurs 58 theropods 58 Tiktaalik 57 pterosaurs 56 forelimbs 56 morphologically 55 tetrapod 55 tyrannosaur 55 Indohyus 55 H. erectus 55 LB1 54 forelimb 54 hadrosaur 53 Homo habilis 52 anatomically 52 Ardipithecus 51 mitochondrial genome 51 sauropod 51 Homo floresiensis 51 Australopithecus 51 flagellum 51 plesiosaur 51 hind limbs 51 clade 51 vertebrate 51 Velociraptor 50 melanosomes 50 tetrapods 50 evolutionarily 50 clades 50 tyrannosaurs 50 baleen whales 50 hominins 50 Neandertal 50 hominin 50 morphological 49 dorsal fin 49 genus Homo 49 mammalian species 49 subfamily 49 genus 49 crocodilians 49 sauropods 49 Longrich 49 carnivorous dinosaurs 48 morphologic 48 Australopithecus afarensis 48 homo sapiens 48 lineages 48 pectoral fins 48 palaeontologists 48 bipedalism 48 Neandertals 48 moa 48 prokaryotes 48 morphology 47 phylogeny 47 foraminifera 47 Homo erectus 47 specimen 47 taxa 47 hominid 47 dorsal fins 47 T. rex 47 Hurum 47 echidna 46 anthropoids 46 evolutionary 46 arthropod 46 skink 46 palaeontology 46 homology 46 anatomical 46 Triceratops 46 multicellular organisms 46 Tyrannosaurus 46 vertebrates 46 diploid 46 asexual reproduction 46 stromatolites 46 triceratops 46 Denisovans 46 mandibles 46 Homo sapiens 46 coelacanth 46 flightless bird 46 thylacine 46 upright posture 46 vulgaris 45 Poinar 45 Drosophila melanogaster 45 Stegosaurus 45 velociraptor 45 bipedal 45 phylogenetic 45 continental crust 45 mammalian 45 flagella