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A sign at a park featuring Irasutoya illustrations. In addition to typical clip art topics, unusual occupations such as nosmiologists, airport bird patrollers, and foresters are depicted, as are special machines like miso soup dispensers, centrifuges, transmission electron microscopes, obscure musical instruments (didgeridoo, zampoña, cor anglais), dinosaurs and other ancient creatures such ...
Ankylosaurus was the largest-known ankylosaurine dinosaur and possibly the largest ankylosaurid. [12] In 2004 Carpenter estimated that the individual with the largest-known skull (specimen CMN 8880), which is 64.5 centimeters (2 ft 1 + 1 ⁄ 2 in) long and 74.5 cm (2 ft 5 + 1 ⁄ 4 in) wide, was about 6.25 m (20 ft 6 in) long and had a hip ...
Alamosaurus was a gigantic quadrupedal herbivore with the long neck, the long tail, the relatively long limbs and the body partly covered with bony armor. [ 3 ][ 4 ] It would have measured around 26 metres (85 ft) long, 5 metres (16 ft) tall at the shoulder and weighed up to 30–35 tonnes (33–39 short tons) based on known adult specimens ...
Compsognathus (/ kɒmpˈsɒɡnəθəs /; [1] Greek kompsos /κομψός; "elegant", "refined" or "dainty", and gnathos /γνάθος; "jaw") [2] is a genus of small, bipedal, carnivorous theropod dinosaur. Members of its single species Compsognathus longipes could grow to around the size of a chicken. They lived about 150 million years ago ...
Dinosaurs are a diverse group of reptiles [ note 1 ] of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is a subject of active research.
Selected pictures. For additional high quality dinosaur images, see the Dinosaur Image Review. Tyrannosaurus rex skeleton at the Carnegie Museum of Natural History, Pittsburgh. Photo credit: User:ScottRobertAnselmo. Skeleton mount of Herrerasaurus ischigualastensis at the Field Museum of Natural History, Chicago. Photo credit: User:Amphicoelias.
Classification of dinosaurs. Dinosaur classification began in 1842 when Sir Richard Owen placed Iguanodon, Megalosaurus, and Hylaeosaurus in "a distinct tribe or suborder of Saurian Reptiles, for which I would propose the name of Dinosauria." [1] In 1887 and 1888 Harry Seeley divided dinosaurs into the two orders Saurischia and Ornithischia ...
The belief that plesiosaurs are dinosaurs is a common misconception, and plesiosaurs are often erroneously depicted as dinosaurs in popular culture. [ 138 ] [ 139 ] It has been suggested that legends of sea serpents and modern sightings of supposed monsters in lakes or the sea could be explained by the survival of plesiosaurs into modern times.