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Parasaurolophus makes a brief cameo in the short, drinking at a river while a group of fisherman canoe past it during the end credits. Dai, H.; Li, N.; Maidment, S.C.R.; Wei, G.; Zhou, Y.X.; Hu, X.F.; Ma, Q.Y.; Wang, X.Q.; Hu, H.Q.; Peng, G.Z. (2022). "New Stegosaurs from the Middle Jurassic Lower Member of the Shaximiao Formation of Chongqing, China". Journal of Vertebrate Paleontology. 41 (5): e1995737. doi: 10.1080/02724634.2021.1995737. S2CID 247267743.
Stegosauria is a group of herbivorous ornithischian dinosaurs that lived during the Jurassic and early Cretaceous periods. Stegosaurian fossils have been found mostly in the Northern Hemisphere, predominantly in what is now North America, Europe, Africa, South America and Asia. Their geographical origins are unclear; the earliest unequivocal stegosaurian, Huayangosaurus taibaii, lived in China.
Norman, David (2001). " Scelidosaurus, the earliest complete dinosaur" in The Armored Dinosaurs, pp 3-24. Bloomington: Indiana University Press. ISBN 0-253-33964-2. Some time later, Darius Bowman and Kenji Kon looked into why their stream had stopped, they found a log had clogged up the river. As they were figuring out what to do with it, two nearby Stegosaurus were competing for territory, causing Darius to get an idea. The two got the attention of a Stegosaurus, luring it into breaking the log but getting chased by it afterwards until its competitor caught up and continued challenging it. In the DVD The Making of The Lost World: Jurassic Park, Julianne Moore says that "Claire" is the name assigned to the animatronic of the juvenile Stegosaurus.
Stegosaurus appears numerous times throughout the series within large mixed species herds of dinosaurs. Masrani Global Corporation created a new dinosaur zoo on Isla Nublar: Jurassic World. The new cloned Stegosaurus lived in the Cretaceous Cruise, the Gentle Giants Petting Zoo and the Gyrosphere Valley. A Parasaurolophus made brief appearances in the Cretaceous Cruise and the Gentle Giants Petting Zoo.
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From the 1950s onwards, the geology of China was systematically surveyed in detail and infrastructural works led to a vast increase of digging activities in that country. This resulted in a new wave of Chinese stegosaurian discoveries, starting with Chialingosaurus in 1957. Chinese finds of the 1970s and 1980s included Wuerhosaurus, Tuojiangosaurus, Chungkingosaurus, Huayangosaurus, Yingshanosaurus and Gigantspinosaurus. This increased the age range of good fossil stegosaurian material, as they represented the first relatively complete skeletons from the Middle Jurassic and the Early Cretaceous. Especially important was Huayangosaurus, which provided unique information about the early evolution of the group. Bakker, R.T., 1998, "Dinosaur mid-life crisis: the Jurassic-Cretaceous transition in Wyoming and Colorado", In: S.G. Lucas, J.I. Kirkland, & J.W. Estep (eds.) Lower and Middle Cretaceous Terrestrial Ecosystems; New Mexico Museum of Natural History and Science Bulletin, 14: 67-77 The clones resembled the species Parasaurolophus walkeri, however, they are slightly shorter than the original animal, being 10 meters (33 feet) in length instead of 11.45 meters (37 feet). [2] Although the clones are capable of walking on all fours and two legs, they mostly stood upright, nearly dragging its tail, unlike the original. By 2022, the Department of Prehistoric Wildlife had sightings of Stegosaurus in Sanford and Orlando, Florida, Carrabassett, Maine, and Diablo, Washington in the USA. It has also been seen in British Columbia in Canada. [11]
The endorsement team saw a herd of Parasaurolophus at the Watering Hole of the Brachiosaurus Enclosure once they arrived on Isla Nublar. [4] Stegosaurus is often called the dumbest dinosaur because of its incredibly small brain. In fact, most scientists originally believed that its brain was too small to control such a large creature and that it used an auxiliary "brain" located above its rear legs to help control its movements. This was not actually a brain, but a bundle of nerves that helped relay information from its real brain. Its brain was once thought to have been the size of a walnut, but CAT-scans proved that it was actually the size of a kitten. Due to its small brain, 19th century scientists thought the Stegosaurus had a second brain in its hip. In other words, its butt!" Galton, P.M., 1997, "Stegosauria", pp. 701-703 in: P.J. Currie and K. Padian (eds.), Encyclopedia of Dinosaurs, Academic Press, San Diego However, according to information revealed by InGen reports, there were at least 9 surviving Parasaurolophus on the island over there in October 1994. [9]
Parasaurolophus, a herbivorous dinosaur, exhibits a generally peaceful and non-threatening demeanor. They are often observed gathering in both small and large herds, typically found in expansive grasslands, forests, or near watering holes. These dinosaurs are primarily grazers, calmly foraging for vegetation. Parasaurolophus has also displayed a propensity for harmonious coexistence with other herbivorous species, such as Triceratops, Sinoceratops, sauropods like brachiosaurus, and Apatosaurus. The Stegosaurs had to learn to live in the wild. Since they no longer received lysine supplements in their food, they started to eat lysine-rich plants. [5] It is unknown how many Stegosaurs lived on the island.
The stegosaurian pelvis was originally moderately large, as shown by Huayangosaurus. Later species, however, convergent to the Ankylosauria developed very broad pelves, in which the iliac bones formed wide horizontal plates with flaring front blades to allow for an enormous belly-gut. The ilia were attached to the sacral vertebrae via a sacral yoke formed by fused sacral ribs. Huayangosaurus still had rather long and obliquely oriented ischia and pubic bones. In more derived species, these became more horizontal and shorter to the rear, while the front prepubic process lengthened. Stegosaurus lived in what is now North America and Portugal during the Late Jurassic period, around 145-155 million years ago, in semiarid environments with distinct wet and dry seasons upon flat floodplains. It roamed the vast, dry plains where conifers formed river-lining forests, in search of low-lying vegetation such as ginkgoes, cycads, trees, ferns, plants, and sparse Araucaria trees. It coexisted with many other notable genera of dinosaurs such as the fearsome Allosaurus as well as Apatosaurus, Brachiosaurus, Camarasaurus, Ceratosaurus, Diplodocus, and Dryosaurus. The Snow biome has low temperatures and was where Pierce was sent by Kash to see how long it could last there. They had a wide range of territory on the island. In the east, they coexisted with Gallimimus, Pachycephalosaurus, and Mamenchisaurus. [3] In the west, they lived alongside with Ankylosaurus, Brachiosaurus, Stegosaurus, and Triceratops, later even forming mixed herds with the related hadrosaur Corythosaurus. [5]Fastovsky D.E.; Weishampel D.B. (2005). "Stegosauria:Hot Plates". In Fastovsky D.E.; Weishampel D.B. (eds.). The Evolution and Extinction of the Dinosaurs (2nded.). Cambridge University Press. pp.107–130. ISBN 978-0-521-81172-9. The newer and yellow-green Velociraptor, Smilodon, Nothosaurus, Sino-Spino, and Kentrosaurus were confirmed to be cloned by Mantah Corp, with some Tyrannosaurus rex, Brachiosaurus, Dilophosaurus, Ceratosaurus, Stegosaurus, Pteranodon, and Spinosaurus being from Isla Sorna and Compsognathus, Ankylosaurus, Carnotaurus, Baryonyx, and Dimorphodon being from Isla Nublar. Galton, Peter; Paul Upchurch (2004). "16: Stegosauria". In David B. Weishampel; Peter Dodson; Halszka Osmólska (eds.). Dinosauria (2nded.). Berkeley: University of California Press. p.361. Tumanova, T. A.; Alifanov, V. R. (2018-12-01). "First Record of Stegosaur (Ornithischia, Dinosauria) from the Aptian–Albian of Mongolia". Paleontological Journal. 52 (14): 1771–1779. doi: 10.1134/S0031030118140186. ISSN 1555-6174. S2CID 91559457. Kenneth Carpenter of the Denver Museum of Nature and Science published a preliminary phyletic tree [19] of stegosaurians, in the 2001 description of Hesperosaurus. An updated phylogeny was published by Mateus et al. (2009), which is shown below. [10] Stegosauria
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