Related by context. Frequent words. (Click for all words.) 62 marine reptiles 60 tetrapods 60 mammals 59 crocodilians 58 mammoths 58 Archaeopteryx 58 theropod 58 baleen whales 58 hominins 57 Neandertals 57 carnivorous dinosaurs 57 H. erectus 57 megafauna 56 Neandertal 56 extinct species 56 hominids 56 Tiktaalik 56 fossil 55 vertebrates 55 sauropods 55 marine invertebrates 55 tyrannosaur 54 mammal 54 species 54 wooly mammoth 54 taxa 54 dinosaurs 54 multicellular 54 fossils 54 primate species 54 prehistoric 54 Australopithecus 54 thylacine 54 theropods 53 herbivore 53 trilobites 53 Homo sapiens 53 hominid 53 sauropod 53 genus Homo 53 ungulates 53 hadrosaur 53 hominin 53 Homo Sapiens 53 Ardipithecus 53 mastodons 53 plesiosaur 53 woolly mammoths 52 herbivorous 52 pterosaur 52 monkeys apes 52 Homo floresiensis 52 Neanderthals 52 Sperm whales 52 arthropod 52 tyrannosaurs 52 pterosaurs 52 Homo erectus 52 T. rex 52 fossilized bones 52 musk oxen 51 subfamily 51 lineages 51 fossilized remains 51 Homo habilis 51 LB1 51 moa 51 herbivores 51 Cretaceous Period 51 vertebrate 51 morphologically 51 narwhals 51 homo sapiens 51 giant tortoises 50 Archaea 50 vertebrate species 50 pronghorns 50 Mammoths 50 flightless birds 50 bowhead 50 coprolites 50 Kennewick Man 50 prehistoric creatures 50 subspecies 50 hunter gatherers 50 Sage grouse 50 terrestrial ecosystems 50 multicellular organisms 50 prokaryotes 50 humans 50 lifeforms 49 dinosaur fossil 49 Denisovans 49 avian species 49 Late Cretaceous 49 African savanna 49 Australopithecus afarensis 49 middens 49 triceratops 49 Burgess Shale 49 dinosaur