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Linheraptor

Linheraptor is a genus of dromaeosaurid dinosaur which lived in what is now China in the Late Cretaceous. It was named by Xu Xing and colleagues in 2010, and contains the species Linheraptor exquisitus.[1] This bird-like dinosaur was less than 2 m (6.5 ft) long and was found in Inner Mongolia. It is known from a single, nearly complete skeleton.

Linheraptor
Temporal range: Late Cretaceous, Campanian
Holotype fossil, IVPP V16923
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Family: Dromaeosauridae
Clade: Eudromaeosauria
Subfamily: Velociraptorinae
Genus: Linheraptor
Xu et al., 2010
Species:
L. exquisitus
Binomial name
Linheraptor exquisitus
Xu et al., 2010

Discovery edit

Researchers announced the discovery of the genus after a nearly complete fossilised skeleton was found in 2008 by Jonah N. Choiniere and Michael Pittman[1] in Inner Mongolia; a more detailed publication is forthcoming.[2] The specimen was recovered from rocks at Bayan Mandahu that belong to the Wulansuhai Formation. The latter includes lithologies that are very similar to the Mongolian Campanian-aged rocks of the Djadokhta Formation which have yielded the closely related dromaeosaurids Tsaagan and Velociraptor.[1] The holotype specimen of Linheraptor, articulated and uncompressed, is one of the few nearly complete skeletons of dromaeosaurid dinosaurs worldwide.[1] The name of the genus refers to the district of Linhe, Inner Mongolia, China where the specimen was discovered, while the specific name, exquisitus, refers to the well-preserved nature of the holotype (IVPP V 16923).[3]

Description edit

 
Life reconstruction of Linheraptor in its arid desert habitat.

Linheraptor was a bird-like theropod dinosaur. It was a dromaeosaurid which measured approximately 1.8 metres (5.9 ft) in length,[1] and weighed up to approximately 25 kilograms (55 lb).[4] At that size, Linheraptor would have been a fast and agile predator, perhaps preying on small ceratopsians.[5] Like all dromaeosaurids, it had an elongated skull, a curved neck, an enlarged toe claw on each foot, and a long tail; Linheraptor was bipedal and carnivorous. The large toe claws may have been used for capturing prey.[5]

Taxonomy edit

 
Skeletal restoration showing known elements

Among its sister taxa, Linheraptor is believed to be most closely related to Tsaagan mangas. Linheraptor and Tsaagan were intermediate between basal and derived dromaeosaurids. The two share several skull details, among which a large maxillary fenestra — an opening in the maxilla, an upper jaw bone — and lack various features of more derived dromaeosaurids such as Velociraptor.[1] Senter (2011) and Turner, Makovicky and Norell (2012) argue that Linheraptor exquisitus is a junior synonym of Tsaagan mangas,[6][7] but Xu, Pittman et al. (2015) reject this synonymy by responding to the counterarguments proposed using new and existing details of Linheraptor's anatomy.[2] A monographic description of Linheraptor is currently in preparation.

See also edit

References edit

  1. ^ a b c d e f Xu Xing; Choinere, J.N.; Pittman, M.; Tan, Q.W.; Xiao, D.; Li, Z.Q.; Tan, L.; Clark, J.M.; Norell, M.A.; Hone, D.W.E.; Sullivan, C. (2010). "A new dromaeosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Wulansuhai Formation of Inner Mongolia, China" (PDF). Zootaxa (2403): 1–9. Retrieved 2010-03-19.
  2. ^ a b Xu Xing; Michael Pittman; Corwin Sullivan; Jonah N. Choiniere; Qing Wei Tan; James M. Clark; Mark A. Norell; Wang Shuo (2015). "The taxonomic status of the Late Cretaceous dromaeosaurid Linheraptor exquisitus and its implications for dromaeosaurid systematics". Vertebrata PalAsiatica. 53 (1): 29–62.
  3. ^ Ker Than (2010-03-19). . National Geographic. Archived from the original on March 22, 2010. Retrieved 2010-03-21.
  4. ^ Richard Alleyne (2010-03-19). . The Daily Telegraph. Archived from the original on 2010-03-22. Retrieved 2010-03-21.
  5. ^ a b "Linheraptor Exquisitus - New Raptor Species Discovered in Mongolia". Science Blogging. Archived from the original on September 13, 2012. Retrieved March 21, 2010.
  6. ^ Senter, Phil (2011). "Using creation science to demonstrate evolution 2: morphological continuity within Dinosauria (supporting information)". Journal of Evolutionary Biology. 24 (10): 2197–2216. doi:10.1111/j.1420-9101.2011.02349.x. PMID 21726330.
  7. ^ Alan H. Turner, Peter J. Makovicky and Mark Norell (2012). "A review of dromaeosaurid systematics and paravian phylogeny". Bulletin of the American Museum of Natural History. 371: 1–206. doi:10.1206/748.1. hdl:2246/6352. S2CID 83572446.

External links edit

  • Fossil of Linheraptor.
  • Life restoration of Linheraptor exquisitus by paleoartist Julius T. Csotonyi

linheraptor, genus, dromaeosaurid, dinosaur, which, lived, what, china, late, cretaceous, named, xing, colleagues, 2010, contains, species, exquisitus, this, bird, like, dinosaur, less, than, long, found, inner, mongolia, known, from, single, nearly, complete,. Linheraptor is a genus of dromaeosaurid dinosaur which lived in what is now China in the Late Cretaceous It was named by Xu Xing and colleagues in 2010 and contains the species Linheraptor exquisitus 1 This bird like dinosaur was less than 2 m 6 5 ft long and was found in Inner Mongolia It is known from a single nearly complete skeleton LinheraptorTemporal range Late Cretaceous Campanian PreꞒ Ꞓ O S D C P T J K Pg NHolotype fossil IVPP V16923Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClade DinosauriaClade SaurischiaClade TheropodaFamily DromaeosauridaeClade EudromaeosauriaSubfamily VelociraptorinaeGenus LinheraptorXu et al 2010Species L exquisitusBinomial name Linheraptor exquisitusXu et al 2010 Contents 1 Discovery 2 Description 3 Taxonomy 4 See also 5 References 6 External linksDiscovery editResearchers announced the discovery of the genus after a nearly complete fossilised skeleton was found in 2008 by Jonah N Choiniere and Michael Pittman 1 in Inner Mongolia a more detailed publication is forthcoming 2 The specimen was recovered from rocks at Bayan Mandahu that belong to the Wulansuhai Formation The latter includes lithologies that are very similar to the Mongolian Campanian aged rocks of the Djadokhta Formation which have yielded the closely related dromaeosaurids Tsaagan and Velociraptor 1 The holotype specimen of Linheraptor articulated and uncompressed is one of the few nearly complete skeletons of dromaeosaurid dinosaurs worldwide 1 The name of the genus refers to the district of Linhe Inner Mongolia China where the specimen was discovered while the specific name exquisitus refers to the well preserved nature of the holotype IVPP V 16923 3 Description edit nbsp Life reconstruction of Linheraptor in its arid desert habitat Linheraptor was a bird like theropod dinosaur It was a dromaeosaurid which measured approximately 1 8 metres 5 9 ft in length 1 and weighed up to approximately 25 kilograms 55 lb 4 At that size Linheraptor would have been a fast and agile predator perhaps preying on small ceratopsians 5 Like all dromaeosaurids it had an elongated skull a curved neck an enlarged toe claw on each foot and a long tail Linheraptor was bipedal and carnivorous The large toe claws may have been used for capturing prey 5 Taxonomy edit nbsp Skeletal restoration showing known elementsAmong its sister taxa Linheraptor is believed to be most closely related to Tsaagan mangas Linheraptor and Tsaagan were intermediate between basal and derived dromaeosaurids The two share several skull details among which a large maxillary fenestra an opening in the maxilla an upper jaw bone and lack various features of more derived dromaeosaurids such as Velociraptor 1 Senter 2011 and Turner Makovicky and Norell 2012 argue that Linheraptor exquisitus is a junior synonym of Tsaagan mangas 6 7 but Xu Pittman et al 2015 reject this synonymy by responding to the counterarguments proposed using new and existing details of Linheraptor s anatomy 2 A monographic description of Linheraptor is currently in preparation See also edit nbsp Dinosaurs portalTimeline of dromaeosaurid researchReferences edit a b c d e f Xu Xing Choinere J N Pittman M Tan Q W Xiao D Li Z Q Tan L Clark J M Norell M A Hone D W E Sullivan C 2010 A new dromaeosaurid Dinosauria Theropoda from the Upper Cretaceous Wulansuhai Formation of Inner Mongolia China PDF Zootaxa 2403 1 9 Retrieved 2010 03 19 a b Xu Xing Michael Pittman Corwin Sullivan Jonah N Choiniere Qing Wei Tan James M Clark Mark A Norell Wang Shuo 2015 The taxonomic status of the Late Cretaceous dromaeosaurid Linheraptor exquisitus and its implications for dromaeosaurid systematics Vertebrata PalAsiatica 53 1 29 62 Ker Than 2010 03 19 New Dinosaur Exquisite Raptor Found National Geographic Archived from the original on March 22 2010 Retrieved 2010 03 21 Richard Alleyne 2010 03 19 Beautiful fossil of Jurassic Park dinosaur found The Daily Telegraph Archived from the original on 2010 03 22 Retrieved 2010 03 21 a b Linheraptor Exquisitus New Raptor Species Discovered in Mongolia Science Blogging Archived from the original on September 13 2012 Retrieved March 21 2010 Senter Phil 2011 Using creation science to demonstrate evolution 2 morphological continuity within Dinosauria supporting information Journal of Evolutionary Biology 24 10 2197 2216 doi 10 1111 j 1420 9101 2011 02349 x PMID 21726330 Alan H Turner Peter J Makovicky and Mark Norell 2012 A review of dromaeosaurid systematics and paravian phylogeny Bulletin of the American Museum of Natural History 371 1 206 doi 10 1206 748 1 hdl 2246 6352 S2CID 83572446 External links edit nbsp Wikispecies has information related to Linheraptor Fossil of Linheraptor Life restoration of Linheraptor exquisitus by paleoartist Julius T Csotonyi Retrieved from https en wikipedia org w index php title Linheraptor amp oldid 1196853957, wikipedia, wiki, book, books, library,

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