[{"n": "Woolly mammoth", "u": "/e/prehistoric-beasts/woolly-mammoth/", "s": "Extinct ice-age elephant relative, adapted to cold and hunted by humans."}, {"n": "Woolly rhinoceros", "u": "/e/prehistoric-beasts/woolly-rhinoceros/", "s": "Extinct woolly rhinoceros of the Pleistocene mammoth steppe."}, {"n": "Abelisauridae", "u": "/e/prehistoric-beasts/abelisauridae/", "s": "Abelisaurids: Cretaceous carnivores of Gondwana"}, {"n": "Acanthostega", "u": "/e/prehistoric-beasts/acanthostega/", "s": "Early stem-tetrapod with eight-digited limbs, bridging fish and land vertebrates."}, {"n": "Aetosauria", "u": "/e/prehistoric-beasts/aetosauria/", "s": "Heavily armored Late Triassic reptiles, important index fossils."}, {"n": "Alvarezsauridae", "u": "/e/prehistoric-beasts/alvarezsauridae/", "s": "Small, long-legged theropods once mistaken for flightless birds."}, {"n": "Amargasaurus", "u": "/e/prehistoric-beasts/amargasaurus/", "s": "A small sauropod with tall spines on its neck and back."}, {"n": "Anchiornis", "u": "/e/prehistoric-beasts/anchiornis/", "s": "A small, four-winged dinosaur key to understanding bird evolution."}, {"n": "Ankylosauria", "u": "/e/prehistoric-beasts/ankylosauria/", "s": "Armored herbivorous dinosaurs with fused bony shields."}, {"n": "Apatosaurus", "u": "/e/prehistoric-beasts/apatosaurus/", "s": "A large, long-necked sauropod with a whip-like tail."}, {"n": "Archelon", "u": "/e/prehistoric-beasts/archelon/", "s": "Extinct marine turtle, largest ever documented, from the Late Cretaceous."}, {"n": "Archosauromorpha", "u": "/e/prehistoric-beasts/archosauromorpha/", "s": "Clade of reptiles more closely related to archosaurs than to lepidosaurs."}, {"n": "Argentavis", "u": "/e/prehistoric-beasts/argentavis/", "s": "Giant teratorn, among the largest flying birds known."}, {"n": "Argentinosaurus", "u": "/e/prehistoric-beasts/argentinosaurus/", "s": "Giant titanosaur from Early Cretaceous Argentina."}, {"n": "Arizonasaurus", "u": "/e/prehistoric-beasts/arizonasaurus/", "s": "Middle Triassic archosaur with a distinctive back sail."}, {"n": "Asteriornis", "u": "/e/prehistoric-beasts/asteriornis/", "s": "Oldest undisputed modern bird from the Late Cretaceous."}, {"n": "Azhdarchidae", "u": "/e/prehistoric-beasts/azhdarchidae/", "s": "Azhdarchidae: Late Cretaceous pterosaurs including the largest flying animals."}, {"n": "Baurusuchidae", "u": "/e/prehistoric-beasts/baurusuchidae/", "s": "Gondwanan family of terrestrial hypercarnivorous crocodilians from the Late Cretaceous."}, {"n": "Boverisuchus", "u": "/e/prehistoric-beasts/boverisuchus/", "s": "An extinct crocodyliform with hoof-like toes and ziphodont teeth."}, {"n": "Caenagnathidae", "u": "/e/prehistoric-beasts/caenagnathidae/", "s": "Cretaceous oviraptorosaurs with birdlike jaws and feathers."}, {"n": "Camarasaurus", "u": "/e/prehistoric-beasts/camarasaurus/", "s": "A common Late Jurassic sauropod with a chambered vertebrae."}, {"n": "Carnosauria", "u": "/e/prehistoric-beasts/carnosauria/", "s": "Extinct group of carnivorous theropod dinosaurs from the Jurassic and Cretaceous."}, {"n": "Castorocauda", "u": "/e/prehistoric-beasts/castorocauda/", "s": "Jurassic mammaliaform with otter-like adaptations and earliest known fur."}, {"n": "Ceratopsia", "u": "/e/prehistoric-beasts/ceratopsia/", "s": "Herbivorous, beaked dinosaurs with horns and frills."}, {"n": "Ceratosaurus", "u": "/e/prehistoric-beasts/ceratosaurus/", "s": "A horned theropod dinosaur from the Late Jurassic period."}, {"n": "Champsosaurus", "u": "/e/prehistoric-beasts/champsosaurus/", "s": "Extinct crocodile-like reptile from the Late Cretaceous and Paleogene."}, {"n": "Choristodera", "u": "/e/prehistoric-beasts/choristodera/", "s": "Extinct semiaquatic reptiles with diverse body forms and a long fossil record."}, {"n": "Coelophysis", "u": "/e/prehistoric-beasts/coelophysis/", "s": "Small, bipedal carnivore from the Late Triassic of the southwestern US."}, {"n": "Coelurosauria", "u": "/e/prehistoric-beasts/coelurosauria/", "s": "Clade of hollow-tailed dinosaurs that includes all birds."}, {"n": "Confuciusornis", "u": "/e/prehistoric-beasts/confuciusornis/", "s": "Early Cretaceous beaked bird from China, abundant in Jehol Biota."}, {"n": "Corythosaurus", "u": "/e/prehistoric-beasts/corythosaurus/", "s": "Helmeted duck-billed dinosaur known for its crest and preserved skin."}, {"n": "Cotylorhynchus", "u": "/e/prehistoric-beasts/cotylorhynchus/", "s": "A large herbivorous caseid synapsid from the Permian of North America."}, {"n": "Balaur bondoc", "u": "/e/prehistoric-beasts/balaur-bondoc/", "s": "A stocky, double-sickle-clawed dinosaur from Cretaceous Romania."}, {"n": "Yuanmou Man", "u": "/e/prehistoric-beasts/yuanmou-man/", "s": "Early Homo erectus subspecies from southwestern China."}]