[1] While it has been known since 2004, upon the description of Dilong, that at least some tyrannosauroids possessed filamentous "stage 1" feathers,[6] according to the feather typology of Richard Prum, Y. huali is currently the largest-known species of dinosaur with direct evidence of feathers, forty times heavier than the previous record holder, Beipiaosaurus. An initial analysis of its relationship to other tyrannosauroids showed that it was more primitive than Eotyrannus in the evolutionary tree, but more advanced than tyrannosauroids such as Dilong, Guanlong and Sinotyrannus. Weapons of this living hole-puncher include: a single pointed horn which it uses to impale enemies and pure muscle which it uses to charge and overpower it’s foes. Was it related to T-Rex? This species lived during the early Cretaceous period in what is now northeastern China. Yutyrannus was a theropod dinosaur that lived during the early Cretaceous period in what is now northeastern China related to T. rex. "A sauropod rib with an embedded theropod tooth: direct evidence for feeding behaviour in the Jehol group, China. Yutyrannus (meaning "feathered tyrant") is a genus of proceratosaurid tyrannosauroid dinosaur which contains a single known species, Yutyrannus huali. Is it my favourite dinosaur? [9] Their cladogram is shown below: The phylogeny and evolutionary history of tyrannosauroid dinosaurs. ", "Humongous fuzzy dinosaur unearthed in China". Yutyrannus was like T-rex’s little brother, faster and lighter, a feathered athlete of a predator. ( Log Out / It has featured in absolutely no motion pictures, despite it’s epic stature and majestic look.
[1], Yutyrannus is known from three nearly complete fossil specimens (an adult, a subadult and a juvenile) acquired from a fossil dealer who claimed all three had their provenance in a single quarry at Batu Yingzi in Liaoning Province, China.
( Log Out / "A new carcharodontosaurid (Dinosauria, Theropoda) from the Upper Cretaceous of Argentina", "Evolutionary radiation of the Jehol Biota: chronological and ecological perspectives", https://en.wikipedia.org/w/index.php?title=Yutyrannus&oldid=985557486, Creative Commons Attribution-ShareAlike License, Restored skeletons mounted in fighting poses, This page was last edited on 26 October 2020, at 17:03. It had a length of 9 meters (30 feet) and an estimated weight of about 1.4 tonnes (3,120 lbs). [1] The specimens had been cut into pieces about the size of bath mats, which could be carried by two people. It's the battle of the underdogs, the little bro of T-Rex vs the little bro of Triceratops. During growth the lower legs, feet, ilia and forelimbs became relatively smaller. Advanced traits included a large and deep skull, the outer side of the premaxilla having rotated upwards, a large cuneiform horn on the lacrimal in front of the eye socket, a postorbital process on the back rim of the eye socket, the squamosal and the quadratojugal forming a large process on the back rim of the infratemporal fenestra, short dorsal vertebrae, an ilium with a straight upper rim and an appending lobe, a large pubic foot and a slender ischium. (2012). ( Log Out / In the lower jaw, the external mandibular fenestra, the main opening in the outer side, is mainly located in the surangular. 2nd, 2nd favourite. Because the quality of the preservation was low, it could not be established whether the filaments were simple or compound, broad or narrow. Typically Styracosaurus is a herd animal but to make this fight fair it will be one on one, sorry Styracosaurus. [13], Xing L., Bell, P.R., Currie, P.J., Shibata M., Tseng K. & Dong Z.
[1] In 2016, Gregory S. Paul gave lower estimations of 7.5 metres (24.6 ft) and 1.1 tonnes (1.2 short tons).
[1], In 2016, a phylogenetic analysis conducted by Thomas Carr and Stephen Brusatte re-examined the evolutionary relationships of the Tyrannosauroidea.
The presence of feathers on a large basal tyrannosauroid suggests the possibility that later tyrannosaurids were also feathered, even when adult, despite their size. [2], Yutyrannus huali was named and scientifically described in 2012 by Xu Xing et al. Diet [12], Because the locality of Yutyrannus is uncertain, it is unknown what fauna it coexisted with. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. With the holotype they were present on the pelvis and near the foot. [1][7], Based on the distribution of the feathers, they may have covered the whole body and served in regulating temperature, given the rather cold climate of the Yixian with an average annual temperature of 10 °C (50 °F). Change ), You are commenting using your Google account.
Unfortunately for this animal though it’s display feathers and stealth won’t help it during this death battle. After years of living in their older sibling’s shadow, could this be their chance on the stage?
1.4 tons (3,120 lbs) They were thus probably found in a layer of the Yixian Formation, dating from the Aptian, approximately 125 million years old. The feathers were long, up to 20 centimetres (7.9 in), and filamentous. Feathered Tyrant Primitive traits relative to advanced tyrannosaurs included long forelimbs with three fingers and a short foot which was not specialized for running. ( Log Out / It is known for being both the largest known feathered Dinosaur and the biggest Theropod with direct evidence of feathers so far. ", Institute of Vertebrate Paleontology and Paleoanthropology, "A gigantic feathered dinosaur from the Lower Cretaceous of China", "The One-Ton Turkey: Further Adventures in Slow-Cooked Science", "Convergent evolution of a mobile bony tongue in flighted dinosaurs and pterosaurs", "There are giant feathered tyrannosaurs now...right? The smallest specimen showed 20-centimetre-long (7.9 in) filaments on the neck and 16-centimetre-long (6.3 in) feathers at the upper arm. Jurassic Park wiki is a FANDOM Movies Community. 3 meters Yutyrannus (meaning "feathered tyrant") is a genus of proceratosaurid tyrannosauroid dinosaur which contains a single known species, Yutyrannus huali.This species lived during the early Cretaceous period in what is now northeastern China. China [8] If scaly skin was the dominant epidermal trait of later genera, then the extent and nature of the integumentary covering may have changed over time in response to body size, a warmer climate, or other factors. Name meaning [1], To date, all phylogenetic analyses of Yutyrannus relationships have classified it in the group Tyrannosauroidea. Carnivore [1], According to a 2018 study, Yutyrannus had a simple hyoid structure, indicating it had a flat tongue, like a crocodile. Change ), You are commenting using your Twitter account. The name is derived from Mandarin Chinese yǔ (羽, "feather") and Latinised Greek tyrannos (τύραννος, "tyrant"), a reference to its classification as a feathered member of the Tyrannosauroidea. [1], Because the three known individuals of Yutyrannus were allegedly found together, some paleontologists, including Xu Xing, have interpreted the animal as a pack hunter. [5], The described specimens of Yutyrannus contain direct evidence of feathers in the form of fossil imprints. Since there is no positive evidence for plumage in tyrannosaurids, some researchers have suggested they may have evolved scales secondarily. Range
Yutyrannus was a theropod dinosaur that lived during the early Cretaceous period in what is now northeastern China related to T. rex. It is known for being both the largest known feathered Dinosaur and the biggest Theropod with direct evidence of feathers so far. [10] If Yutyrannus did prey on sauropods, it would have been one of two predatory animals known from the Yixian formation capable of doing so, the other being an as-of-yet undescribed large theropod known from a tooth embedded in the rib of a Dongbeititan. Yutyrannus was an impressive specimen; at 30 foot long, around twelve feet high and weighing more than three thousand pounds, this was an animal worthy of being called a Tyrannosaur. Change ), You are commenting using your Facebook account. [1], The describers established some diagnostic traits of Yutyrannus, in which it differs from its direct relatives. 9 meters (30 feet) Notable Game appearances Location Yutyrannus [3], The holotype, ZCDM V5000, is the largest specimen, consisting of a nearly complete skeleton with skull, compressed on a slab, of an adult individual. The skull, on the other hand, grew more robust and deeper. Yutyrannus has speed though which is something it’s relatives never had, it could reach a sprint of 25mph which although the same as Rex, Yutyrannus could run longer than it’s big brother. [1] However, scaly skin impressions have been reported from various Late Cretaceous tyrannosaurids (such as Gorgosaurus, Tarbosaurus and Tyrannosaurus) on parts of the body where Yutyrannus was feathered. The fossils are part of the collections of the Zhucheng Dinosaur Museum and the Erlianhaote Dinosaur Museum but have been prepared by the Institute of Vertebrate Paleontology and Paleoanthropology, under the guidance of Xu.
The paratypes are the two other specimens: ZCDM V5001 consisting of a skeleton of a smaller individual and part of the same slab as the holotype; and ELDM V1001, a juvenile estimated to have been eight years younger than the holotype. The skulls of the paratypes are 80 centimetres (31 in) and 63 centimetres (25 in) long and their weights have been estimated at 596 kilograms (1,314 lb) and 493 kilograms (1,087 lb), respectively. [4] Its skull has an estimated length of 905 millimetres (35.6 in). [11] The true cause of their death, however, remains unknown. Change ). Their analysis found Yutyrannus to be more basal than Dilong, placing it within the family Proceratosauridae. Length Fish such as Lycoptera would also have been prevalent. The postorbital bone has a small secondary process, jutting into the upper hind corner of the eye socket. Yutyrannus was like T-rex's little brother, faster and lighter, a feathered athlete of a predator. Based on hyoid bone comparisons between living and extinct archosaurs, it was determined that all archosaurs would have had fixed tongues, with the exception of birds, pterosaurs and certain ornithischians. Height It has featured in absolutely no…
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