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Scale diagram comparing a human and the longest-known dinosaurs of five major clades An adult male bee hummingbird, the smallest known and the smallest living dinosaur. Size is an important aspect of dinosaur paleontology, of interest to both the general public and professional scientists.
Date/Time Thumbnail Dimensions User Comment; current: 11:45, 23 September 2007: 610 × 371 (18 KB): Marmelad {{Information |Description=Size comparison between the giant sauropod dinosaur Brachiosaurus and a human |Source=Based on Image:Human-brachiosaurus size comparison.png |Date=2007-09-23 |Author=Marmelad |Permission=Attribution ShareA
Size comparison between the ceratopsid Styracosaurus and a human: Date: 23 September 2007: Source: Based on Image:Styracosaurus dinosaur.png: Author: Marmelad: Permission (Reusing this file) Attribution ShareAlike 2.5
Utahraptor specimens compared in size to a 1.8-metre-tall (5.9 ft) human Utahraptor was one of, if not the largest and heaviest of all dromaeosaurids, with the largest assigned specimen BYUVP 15465 having a femoral length of 56.5–60 cm (22.2–23.6 in).
Size of two specimens (holotype in yellow, right) compared to a 1.8 m (5.9 ft) tall human For maniraptoran standards, Therizinosaurus obtained enormous sizes, estimated to have reached 9 to 10 m (30 to 33 ft) in length with estimated heights from 4 to 5 m (13 to 16 ft) and ponderous weights from 3 t (3.3 short tons) to possibly over 5 t (5.5 ...
“For over 100 million years when dinosaurs were the dominant predators, mammals were generally small, nocturnal, and short-lived.” The pressure to stay alive eliminated the genes needed for ...
English: Size comparison of members of the Trachelosauridae (Dinocephalosaurus orientalis, "Protanystropheus (Tanystropheus) antiquus", Trachelosaurus fischeri, and Pectodens zhenyuensis) with an adult human male (~1.8 m) for reference.
Named Gondwanax paraisensis, the four-legged reptile species was roughly the size of a small dog with a long tail, or about 1 meter (39 inches) long and weighing between 3 and 6 kg (7 to 13 pounds ...