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| - The Yutyrannus (meaning "feathered tyrant"), is a genus of tyrannosauroid dinosaurs which contains a single species, Yutyrannus huali. This species lived during the early Cretaceous period 135-120 in what is now northeastern China. Three fossils of the Yutyrannus, all found in the rock beds of Liaoning Province, are currently the largest known dinosaur specimens that preserve direct evidence of feathers.
- Yutyrannus est un Tyrannosauroidea de 9 m de long et 1 414 kg pour l'adulte. Les deux autres individus retrouvés semblent jeunes et sont plus petits. La fossilisation a préservé des plumes de stade 1, c'est-à-dire filamenteuses, d'environ 15 cm. Il s'agit du plus grand animal connu à avoir porté des plumes. Ce plumage avait vraisemblablement un rôle dans la thermorégulation. Le corps entier de l'animal devait être recouvert de plumes. Chez le specimen adulte, elles sont préservées sur l'arrière de la queue, mais les juvéniles ont des plumes sur le bassin, les pattes arrière, le cou ainsi que l'humérus. L'animal présente également une crête nasale et prémaxillaire bien pneumatisée, fait unique chez les Tyrannosauroidés, ainsi qu'un processus orbitaire antéroventral. La taille du fémur (85 c
- Yutyrannus huali was named and scientifically described in 2012 by Xu Xing et al. The name is derived from Mandarin Chinese yǔ (羽, "feather") and Latinised Greek tyrannos (τύραννος, "tyrant"), a reference to the classification as a feathered member of the Tyrannosauroidea. The specific name consists of the Mandarin huáli (华丽, "beautiful"), in reference to the beauty of the plumage.[2]
- 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 Batuyingzi in Liaoning Province, China. They thus probably were found in a layer of the Yixian Formation, dating from the Aptian, about 125 million years old. The specimens had been cut into pieces about the size of bath mats, which could be carried by two people. The holotype, ZCDM V5000, is the largest specimen,
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| abstract
| - The Yutyrannus (meaning "feathered tyrant"), is a genus of tyrannosauroid dinosaurs which contains a single species, Yutyrannus huali. This species lived during the early Cretaceous period 135-120 in what is now northeastern China. Three fossils of the Yutyrannus, all found in the rock beds of Liaoning Province, are currently the largest known dinosaur specimens that preserve direct evidence of feathers.
- 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 Batuyingzi in Liaoning Province, China. They thus probably were found in a layer of the Yixian Formation, dating from the Aptian, about 125 million years old. The specimens had been cut into pieces about the size of bath mats, which could be carried by two people. 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 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 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 guidance of Xu.
- Yutyrannus est un Tyrannosauroidea de 9 m de long et 1 414 kg pour l'adulte. Les deux autres individus retrouvés semblent jeunes et sont plus petits. La fossilisation a préservé des plumes de stade 1, c'est-à-dire filamenteuses, d'environ 15 cm. Il s'agit du plus grand animal connu à avoir porté des plumes. Ce plumage avait vraisemblablement un rôle dans la thermorégulation. Le corps entier de l'animal devait être recouvert de plumes. Chez le specimen adulte, elles sont préservées sur l'arrière de la queue, mais les juvéniles ont des plumes sur le bassin, les pattes arrière, le cou ainsi que l'humérus. L'animal présente également une crête nasale et prémaxillaire bien pneumatisée, fait unique chez les Tyrannosauroidés, ainsi qu'un processus orbitaire antéroventral. La taille du fémur (85 cm) suggère un animal plus grand que Dryptosaurus (77 cm) ou Appalachiosaurus (79 cm). C'est donc un tyrannosauroidea de grande taille.
- Yutyrannus huali was named and scientifically described in 2012 by Xu Xing et al. The name is derived from Mandarin Chinese yǔ (羽, "feather") and Latinised Greek tyrannos (τύραννος, "tyrant"), a reference to the classification as a feathered member of the Tyrannosauroidea. The specific name consists of the Mandarin huáli (华丽, "beautiful"), in reference to the beauty of the plumage.[2] 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 Batuyingzi in Liaoning Province, China. They thus probably were found in a layer of the Yixian Formation, dating from the Aptian, approximately 125 million years old.[2] The specimens had been cut into pieces about the size of bath mats, which could be carried by two people.[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 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 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 guidance of Xu.
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