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Inostrancevia is the biggest-known gorgonopsian, the largest fossil specimens indicating an estimated size between 3 m (9.8 ft) and 3.5 m (11 ft) long. The animal is characterized by its robust skeleton, broad skull and a very advanced dentition , possessing large canines , the longest of which can reach 15 cm (5.9 in) and probably used to ...
September 4. (2011-09-04) –. September 13, 2011. (2011-09-13) Dinosaur Revolution is a four-part American nature documentary produced by Creative Differences. [1][2] It utilizes computer-generated imagery to portray dinosaurs and other animals from the Mesozoic era. The program was originally aired on the Discovery Channel and Science.
Size comparison between a person and Inostrancevia (reconstructed with long lips and some hair). Earlier gorgonopsids in the Middle Permian were quite small, with skull lengths of 10–15 cm (4–6 in), [1] whereas some later genera attained massive, bear-like sizes with the largest being Inostrancevia up to 3.5 m (11 ft) in length and 300 kg (660 lb) in body mass. [2]
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 ...
Therapsida [a] is a clade comprising a major group of eupelycosaurian synapsids that includes mammals and their ancestors and close relatives. Many of the traits today seen as unique to mammals had their origin within early therapsids, including limbs that were oriented more underneath the body, resulting in a more "standing" quadrupedal posture, as opposed to the lower sprawling posture of ...
1924 — Raymond Dart examines fossils of " Taung Child," found by quarrymen in South Africa, and names Australopithecus africanus. 1944 — The publication of Tempo and Mode in Evolution by George Gaylord Simpson integrates paleontology into the modern evolutionary synthesis. 1946 — Reginald Sprigg discovers fossils of the Ediacaran biota in ...
Stephen Louis "Steve" Brusatte FRSE (born April 24, 1984) is an American paleontologist, author, and evolutionary biologist who specializes in the anatomy and evolution of dinosaurs. [1][2] He was educated at the University of Chicago for his Bachelor's degree, at the University of Bristol for his Master's of Science on a Marshall Scholarship ...
Free-air gravity anomaly over the Chicxulub structure (coastline and state boundaries shown as black lines) The Chicxulub crater (IPA: [t͡ʃikʃuˈluɓ] ⓘ cheek-shoo-LOOB) is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is offshore, but the crater is named after the onshore community of Chicxulub Pueblo ...