Related by context. Frequent words. (Click for all words.) 60 Fossilized 57 fossilized skull 57 ichthyosaur 55 theropod 54 peccary 53 pterosaur 53 Diplodocus 53 baleen whale 53 sauropod 52 horned dinosaurs 52 tetrapod 52 fossils 52 Early Cretaceous 52 fossilized skeleton 52 ammonites 52 sauropods 52 horned dinosaur 52 mosasaurs 52 braincase 51 fossilized 51 mosasaur 51 mammal 51 systematics 51 unicellular 50 dinosaur species 50 Palaeontology 50 brachiopods 50 plesiosaurs 50 fossilized remains 50 mottled brown 50 flatworm 50 preserved fossils 50 H. floresiensis 50 Indohyus 49 trilobites 49 plesiosaur 49 snail shells 49 hadrosaur 49 hominid species 49 medullary bone 49 australopithecines 49 kipunji 48 microfossils 48 H. sapiens 48 Gondwanaland 48 Ardipithecus ramidus 48 fossil 48 coprolites 48 Apatosaurus 48 Scientists theorize 48 trilobite 48 paleobiologist 48 Vertebrate 48 wooly mammoth 48 A. afarensis 48 echidnas 48 erectus 47 Palaeontologists 47 Late Cretaceous 47 Raptorex 47 radiocarbon dated 47 Neoproterozoic 47 elegans 47 Smilodon 47 Pterosaurs 47 echinoderms 47 biogeography 47 mammoth tusk 47 toothed whales 47 Mesozoic 47 saber toothed cat 47 tyrannosaur 47 wormlike 47 dinosaur 47 calcareous 47 Xenopus 47 protists 47 hadrosaurs 47 Tiktaalik 47 palaeontologist 47 mammals 46 stickleback 46 regrows 46 carnivorous dinosaurs 46 H. erectus 46 morphologically 46 theropods 46 dinosaur eggs 46 barnacle encrusted 46 hydrothermal vent 46 concretions 46 species 46 afarensis 46 Columbian mammoth 46 Cenozoic 46 daddy longlegs 46 crocodilian 46 temperate forests 46 morphological 46 Allosaurus 46 anthropoids