Now updated for CSW19. New words, if any, and new inflections of existing words, are shown in red.
allosaur | a large, lizard-hipped carnivorous dinosaur. |
allosaurus | a kind of dinosaur. |
ankylosaur | a kind of dinosaur with a club tail. |
ankylosaurus | a kind of dinosaur with a club tail. |
apatosaur | a long-necked dinosaur. |
apatosaurus | a kind of dinosaur. |
archaeopteryx | a Jurassic fossil bird of the Archaeopteryx genus, with a long bony tail, sharp-toothed jaws, and wings bearing three clawed digits. |
archaeornis | a primitive reptile-like fossil bird. |
archosaur archosaurian | any of a subclass of reptiles comprising pterosaurs, dinosaurs and crocodilians. |
barosaur | a large dinosaur. |
brachiosaurus | any member of a genus of huge lizard-hipped plant-eating dinosaurs. |
brontosaur | any of a genus of large sauropod dinosaurs of the Jurassic. |
brontosaurus | any of a genus of large sauropod dinosaurs of the Jurassic. |
carnosaur | a meat-eating dinosaur. |
ceratopsian | a bird-hipped, plant-eating dinosaur of the late Cretaceous. |
ceratopsid | a bird-hipped, plant-eating dinosaur of the late Cretaceous. |
ceteosaurus | a large Jurassic dinosaur. |
chalicothere | an extinct three-toed ungulate. |
coelurosaur | a bipedal carnivorous dinosaur of the Triassic and Cretaceous periods. |
cotylosaur | an extinct primitive reptile with massive body and short legs. |
creodont | any member of a group of primitive fossil carnivores, appearing in Eocene times. |
cynodont | a carnivorous mammal-like reptile of the late Permian and Triassic. |
deinonychus | any of a genus of small bipedal carnivorous theropod dinosaurs from the Cretaceous. |
deinosaur | any of a group of extinct reptiles. |
deinothere | an extinct elephantine mammal with downward-curving tusks. |
deinotherium | an extinct elephantine mammal with downward-curving tusks. |
dicynodont | a fossil reptile with no teeth except for two in the upper jaw. |
dino | (Short for) a dinosaur. |
dinosaur | any of a group of extinct reptiles. |
dinosaurian | of or like a dinosaur. |
dinosauric | of or like a dinosaur. |
dinothere | an extinct elephantine mammal with downward-curving tusks. |
dinotherium | an extinct elephantine mammal with downward-curving tusks. |
diplodocus | a gigantic, quadruped, herbivorous dinosaur. |
diprotodon | any marsupial of the Diprotodontia, that includes kangaroos, wombats, etc. |
diprotodontid | an animal of the Diprotodontidae, an extinct family of marsupials including the genus Diprotodon. |
dolichosaurus | any member of the Dolichosauria, a group of Cretaceous fossil reptiles. |
elasmosaur | a very long-necked extinct marine reptile, a type of plesiosaur. |
eohippus | (Greek) an ancestor of the horse. |
eurypterid | any of an order of large extinct aquatic Paleozoic arthropods related to the horsehoe crab. |
eurypteroid | like a member of the Eurypterida, a fossil order of scorpion-like aquatic animals; (noun) a eurypterid. |
fusulinid | any of a family of extinct marine foraminifera. |
glyptodont | any of a family of extinct S. American edentates. |
hadrosaur | a bird-hipped dinosaur of the Cretaceous. |
hadrosaurus | a large dinosaur. |
ichthyosaur | a large fossil marine reptile. |
ichthyosaurian | a large fossil marine reptile. |
ichthyosaurus | a large fossil marine reptile. |
iguanodon | a kind of dinosaur. |
labyrinthodont | an extinct amphibian, so called from a mazy pattern on a section of its teeth. |
machairodont | a sabre-toothed animal. |
maiasaur | a species of dinosaur. |
maiasaura | a species of dinosaur. |
mastodon | a large extinct mammal resembling the elephant. |
mastodonic | of or like a mastodon. |
mastodont | a large extinct mammal resembling the elephant. |
mastodontic | of or like a mastodon. |
megalodon | an extinct giant shark of the Cenozoic era. |
megalosaur | a large dinosaur. |
megalosaurian | a large dinosaur. |
megalosaurus | a large dinosaur. |
mesohippus | an extinct mammal of the Horse family. |
mesosaur | an extinct aquatic reptile. |
mosasaurus | a gigantic Cretaceous fossil pythonomorph reptile. |
mylodon | (Greek) an extinct genus of large slothlike American edentates. |
mylodont | (Greek) an extinct genus of large slothlike American edentates. |
nototherium | an extinct Pleistocene rhinoceros-sized marsupial of the genus Nototherium, related to the wombats. |
notoungulate | any one of an extinct group of herbivorous, hoofed mammals common in S. America between the Palaeocene and Pleistocene eras. |
notungulate | any one of an extinct group of herbivorous, hoofed mammals. |
odontornithes | fossil birds with teeth (not a natural class). |
oreodont | an extinct prehistoric mammal. |
ornithischian | any of an order of herbivorous dinosaurs. |
ornithopod | a member of a suborder of bipedal ornithischian (bird-hipped) dinosaurs. |
ornithosaur | a pterodactyl. |
ostracoderm | any of the early fossil jawless fishes of the Lower Paleozoic usually having a bony covering of plates or scales. |
oviraptor | a small two-footed dinosaur. |
paradoxidian | belonging to the Paradoxides, a Middle Cambrian genus of trilobites. |
pelycosaur | a kind of dinosaur. |
pithecanthropus | any of several primitive extinct men from Java. |
plesiosaur | any of a group of extinct marine reptiles of Mesozoic times. |
plesiosaurian | of or like a plesiosaur, any of a group of extinct marine reptiles of Mesozoic times; (noun) a member of the reptile order Plesiosauria. |
pliosaur | a fossil marine reptile. |
prosauropod | a reptile-like dinosaur of the division Prosauropoda which lived in the Triassic period. |
pteranodon | a toothless flying reptile of the Cretaceous period with a hornlike crest. |
pterodactyl | any of various pterosaurs of the Late Jurassic and Cretaceous having a rudimentary tail and a beak with reduced dentition. |
pterodactyle | any of various pterosaurs of the Late Jurassic and Cretaceous having a rudimentary tail and a beak with reduced dentition. |
pterosaur | a pterodactyl. |
pterosaurian | a pterodactyl. |
pythonomorph | a large marine reptile of the Cretaceous period, with long, scaly body and paddle-shaped limbs. |
saurischian | any dinosaur of the Saurischia. |
sauropod | any gigantic herbivorous quadripedal dinosaur of the suborder Sauropoda. |
sauropodous | like a sauropod. |
sauropterygian | belonging to the Sauropterygia, an order of fossil reptiles; (noun) any carnivorous Mesozoic marine reptile of the group Sauropterygia, with paddle-like limbs. |
smilodon | an extinct genus of saber-toothed tigers. |
stegocephalian | any member of the Stegocephalia, an extinct order of amphibians having the skull protected by bony plates. |
stegodon | an extinct mammal with ridged teeth. |
stegodont | an extinct mammal with ridged teeth. |
stegosaur | a herbivorous dinosaur of the Jurassic period. |
stegosaurian | any quadrupedal herbivorous ornithischian dinosaur of the suborder Stegosauria. |
stegosaurus | a kind of dinosaur. |
supersaur | a very large dinosaur. |
teleosaur | an extinct marine crocodile, having a slender snout and short front legs. |
teleosaurian | a teleosaur, a member of a Jurassic genus of fossil crocodiles. |
thecodont | a member of the order Thecodontia of archosaurian reptiles with teeth fixed in sockets in the jawbone. |
therapsid | one of a group of Permian and Jurassic reptiles considered to be direct ancestors of mammals. |
theropod | a carnivorous dinosaur with small forelimbs (eg tyrannosaurus). |
theropodan | a carnivorous dinosaur with small forelimbs (eg a tyrannosaurus). |
tichorrhine | a fossil woolly rhinoceros with a bony nasal septum. |
titanis | an ostrichlike prehistoric N. American bird. |
titanosaur | a very large dinosaur. |
titanothere | any of various very large extinct horselike perissodactyl mammals. |
triceratops | a kind of dinosaur. |
tyrannosaur | a large carnivorous lizard-hipped dinosaur, common during the Cretaceous period. |
tyrannosaurus | a large carnivorous lizard-hipped dinosaur, common during the Cretaceous period. |
velociraptor | a small bipedal Cretaceous dinosaur with a long narrow head and a sickle-like claw on each hind foot. |