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Size is an important aspect of dinosaur paleontology, of interest to both the general public and professional scientists. Dinosaurs show some of the most extreme variations in size of any land animal group, ranging from tiny hummingbirds , which can weigh as little as two grams, to the extinct titanosaurs , which could weigh as much as 50–100 ...
Body mass estimates for giant azhdarchids are extremely problematic because no existing species shares a similar size or body plan, and in consequence, published results vary widely. [4] Generalized weight, based on some studies that have historically found extremely low weight estimates for Quetzalcoatlus , was as low as 70 kg (150 lb) for a ...
Giganotosaurus ( / ˌɡɪɡəˌnoʊtəˈsɔːrəs / GIG-ə-NOH-tə-SOR-əs [2]) is a genus of theropod dinosaur that lived in what is now Argentina, during the early Cenomanian age of the Late Cretaceous period, approximately 99.6 to 95 million years ago. The holotype specimen was discovered in the Candeleros Formation of Patagonia in 1993 and ...
Size comparison of selected giant theropod dinosaurs, S. aegyptiacus in red Since its discovery, Spinosaurus has been a contender for the largest theropod dinosaur. [ 32 ] Both Friedrich von Huene in 1926 [ 33 ] and Donald F. Glut in 1982 listed it as among the most massive theropods in their surveys, at 15 meters (49 ft) in length and upwards ...
Gigantoraptor size (holotype) compared to a 1.8-metre-tall (5.9 ft) human. Gigantoraptor is the largest known oviraptorosaur for which skeletal material is available. . Approximately three times as long and 35 times heavier than the largest earlier-discovered oviraptorosaur Citipati, the holotype of Gigantoraptor has been estimated at 8 m (26 ft) long with a height of 3.5 m (11 ft) at the hips ...
Pteranodon was the first pterosaur found outside of Europe. Its fossils first were found by Othniel Charles Marsh in 1871, [ 5] in the Late Cretaceous Smoky Hill Chalk deposits of western Kansas. These chalk beds were deposited at the bottom of what was once the Western Interior Seaway, a large shallow sea over what now is the midsection of the ...
Size comparison of specimens representing various growth stages Although slightly smaller than Tyrannosaurus , Tarbosaurus was one of the largest tyrannosaurines, with the type specimen PIN 551–1 measuring approximately 10 metres (33 ft) long, 3 metres (9.8 ft) tall at the hips, and weighing up to 4.5–5 metric tons (5.0–5.5 short tons).
The bigger, but less common, Deinosuchus that lived in Texas and Montana might have been more specialized hunters, capturing and eating large dinosaurs. [17] Schwimmer noted no theropod dinosaurs in Deinosuchus 's eastern range approached its size, indicating the massive crocodilian could have been the region's apex predator. [18]
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