Tyrannosaurus rex: A huge meat-eating dinosaur with a powerful bite and tiny arms Triceratops: A plant eater with three horns and a bony frill Stegosaurus: A plant eater with back plates and a spiked tail Velociraptor: A small feathered meat eater about the size of a turkey Brachiosaurus: A tall, long-necked plant eater Diplodocus: A very long plant eater with a whip-like tail Apatosaurus: A huge long-necked plant eater, once called Brontosaurus Ankylosaurus: An armored plant eater with a club tail Spinosaurus: A large meat eater with a sail on its back that lived near water Allosaurus: A large meat eater from the Jurassic Giganotosaurus: A giant meat eater from South America Parasaurolophus: A duck-billed dinosaur with a long hollow crest Iguanodon: A plant eater with thumb spikes Pachycephalosaurus: A dinosaur with a thick domed skull Compsognathus: A tiny chicken-sized meat eater Argentinosaurus: One of the largest known land animals, a titanosaur Archaeopteryx: An early feathered animal linking dinosaurs and birds Microraptor: A small four-winged feathered dinosaur Oviraptor: A feathered dinosaur whose name means egg thief, though it was probably a good parent Maiasaura: A duck-billed dinosaur whose name means good mother lizard Gallimimus: A fast, ostrich-like dinosaur Utahraptor: A big raptor from Utah Dilophosaurus: An early meat eater with two crests Carnotaurus: A meat eater with horns over its eyes Protoceratops: A small horned dinosaur that lived in Mongolia Pteranodon: A flying reptile (pterosaur) that was not a dinosaur Quetzalcoatlus: A giant pterosaur with a huge wingspan Mosasaurus: A giant sea reptile, not a dinosaur Plesiosaur: A long-necked sea reptile, not a dinosaur Ichthyosaur: A dolphin-shaped sea reptile Dimetrodon: A sail-backed animal older than dinosaurs, not a dinosaur Woolly mammoth: An ice age elephant relative with long tusks Saber-toothed cat: An ice age cat with long upper teeth Megalodon: A huge extinct shark Trilobite: An ancient sea arthropod found as fossils Mesozoic Era: The age of dinosaurs, about 252 to 66 million years ago Triassic Period: First part of the Mesozoic; the first dinosaurs appear Jurassic Period: Middle part of the Mesozoic; long-necked giants and early birds Cretaceous Period: Last part of the Mesozoic; T. rex and Triceratops lived How long ago did non-bird dinosaurs die out?: About 66 million years ago What likely caused the dinosaur extinction?: A giant asteroid hit Earth Where did the asteroid land?: Near the Yucatan Peninsula in Mexico (Chicxulub) Do dinosaurs still live today?: Yes, as birds Fossil: The preserved remains or traces of ancient life Paleontologist: A scientist who studies fossils Trace fossil: Evidence like footprints or burrows Coprolite: Fossilized dung Amber: Fossilized tree resin that can trap insects Mold fossil: An imprint left in rock Petrified wood: Wood turned to stone by minerals Herbivore: Plant eater Carnivore: Meat eater Omnivore: Eats both plants and meat Sauropod: A giant long-necked, four-legged plant eater Theropod: A two-legged mostly meat-eating dinosaur Ornithopod: A plant-eating dinosaur like duck-billed hadrosaurs Ceratopsian: A horned, frilled dinosaur like Triceratops Dinosaur means: Terrible lizard Who coined the word dinosaur in 1842?: Richard Owen Mary Anning: A fossil collector who found early marine reptile skeletons in England Dinosaur National Monument: A park in Utah and Colorado with fossil bones Sue: A famous T. rex skeleton at the Field Museum in Chicago Longest dinosaurs: Some sauropods grew over 30 meters long Egg-laying: Dinosaurs laid eggs in nests Feathers: Many dinosaurs, especially raptors, had feathers Pangaea: The supercontinent where early dinosaurs lived Free flashcards from Peabody at peabody.kids/flashcards/dinosaurs