Sauroposeidon: One of the tallest dinosaurs, with a very long neck Amargasaurus: A sauropod with two rows of tall spines on its neck Dreadnoughtus: A giant sauropod found in Argentina Patagotitan: One of the biggest dinosaurs known, from Patagonia Saltasaurus: A sauropod with bony armor on its back Stegoceras: A small dome-headed dinosaur Corythosaurus: A duck-billed dinosaur with a rounded crest Lambeosaurus: A duck-billed dinosaur with a hatchet-shaped crest Hadrosaurus: The first dinosaur skeleton found in North America Tenontosaurus: A plant-eater that was prey for Deinonychus Psittacosaurus: A small dinosaur with a parrot-like beak Triceratops horn count: Three horns: two long over the eyes and one short on the nose Pentaceratops: A horned dinosaur with a huge frill Torosaurus: A relative of Triceratops with a very long frill Centrosaurus: A horned dinosaur that lived in herds Nodosaurus: An armored dinosaur with no tail club Euoplocephalus: An armored dinosaur with a tail club Minmi: A small armored dinosaur from Australia Scutellosaurus: A tiny early armored dinosaur Troodon: A smart-looking dinosaur with large eyes Oviraptor name: Egg thief, a name later found to be unfair Microraptor: A tiny feathered dinosaur with four wings Sinosauropteryx: One of the first feathered dinosaurs found in China Yutyrannus: A big feathered tyrannosaur Albertosaurus: A tyrannosaur from Canada Gorgosaurus: A tyrannosaur with a slimmer build Tarbosaurus: An Asian relative of T. rex Acrocanthosaurus: A big meat-eater with a ridge on its back Megalosaurus: The first dinosaur ever given a scientific name (1824) Iguanodon discovery: One of the first dinosaurs scientists identified Eoraptor: A small early dinosaur from Argentina Liliensternus: An early meat-eater with a crest Cryolophosaurus: A dinosaur from Antarctica with a head crest Leaellynasaura: A small dinosaur found in Australia that lived in dim polar light Dracorex: A dome-headed dinosaur with spikes; the name means dragon king Pteranodon wingspan: About 20 feet or more across Wooly mammoth: An Ice Age elephant relative with long tusks and shaggy fur Mastodon: An elephant relative of North America with a lower, longer body Smilodon: The sabertooth cat with long upper fangs Woolly rhinoceros: An Ice Age rhino with thick hair Giant ground sloth: A huge sloth of the Ice Age Glyptodon: A giant armored mammal like a huge armadillo Megalodon timeline: Lived millions of years after the dinosaurs ended Dire wolf: A big Ice Age wolf Terror bird: A large flightless bird that hunted in South America Irish elk: A giant deer with very wide antlers La Brea Tar Pits: Tar pits in Los Angeles where many Ice Age animals were found Ice Age: A time when ice sheets covered much of the Earth Extinct: No longer alive anywhere Endangered: At risk of becoming extinct Fossil record: The history of life shown by fossils Amber: Hardened tree resin that can trap insects for millions of years Footprint fossil: A track left in mud that turned to stone Bone bed: A place with many fossil bones together Excavation: Carefully digging up fossils Mounted skeleton: A fossil skeleton put together for a museum Cast: A copy of a fossil bone Where was Sue found?: South Dakota, in 1990 Where is the Smithsonian's National Museum of Natural History?: Washington, D.C. Fossil formation: Minerals slowly replace the bone or shell until it becomes stone What is a trace fossil?: A sign of life like a footprint, rather than a body What do we call plant-eating dinosaurs?: Herbivores What do we call meat-eating dinosaurs?: Carnivores How do we know the colors of some dinosaurs?: Scientists study tiny structures in fossil feathers Did all dinosaurs roar?: No one knows; some may have made low booms like birds and crocodiles Are birds dinosaurs?: Yes, birds are living dinosaurs Largest known meat-eating dinosaur, often said: Spinosaurus What dinosaurs were the biggest overall?: Giant long-necked sauropods Free flashcards from Peabody at peabody.kids/flashcards/fun-dinosaurs-more