Metatarsal III foot bone of specimen NHMUK R1148n (formerly assigned to its own genus, Huxleysaurus)
In May 2010 the fossils comprising Hypselospinus were by David Norman reclassified as a separate genus, among them the holotypeBMNH R1635, consisting of a left ilium, a sacrum, tail vertebrae and teeth. The generic name is derived from Greek hypselos, "high" and Latinspina, "thorn", in reference to the high vertebral spines. Later that same year, a second group of scientists independently re-classified I. fittoni into a new genus they named Wadhurstia,[2] which thus is a junior objective synonym of Hypselospinus. Hypselospinus lived during the lower Valanginian stage, around 140 million years ago.[2][3] A contemporary of Barilium (also once thought to be a species of Iguanodon), Hypselospinus was a lightly built iguanodontian estimated at 6 metres (19.7 ft) long.[4] The species Iguanodon fittoni was described from remains discovered in 1886 alongside an unnamed ichthyosaur in the lower Valanginian-age Lower CretaceousWadhurst Clay[2] of Shornden, East Sussex, England.[5] Remains from Spain may also pertain to it. Norman (2004) wrote that three partial skeletons are known for it,[5] but this is an error.[6]
Hypselospinus is separated from Barilium on the basis of vertebral and pelvic characters, size, and build.[4] For example, Barilium was more robust than Hypselospinus, with large Camptosaurus-like vertebrae featuring short neural spines, whereas Hypselospinus is known for its "long, narrow, and steeply inclined neural spines".[5]
Referencesedit
^Lydekker, Richard (1889). "Notes on New and other dinosaurian remains". Geological Magazine. 6 (8): 352–356. Bibcode:1889GeoM....6..352L. doi:10.1017/S0016756800176587.
^Norman, David B. (2010). "A taxonomy of iguanodontians (Dinosauria: Ornithopoda) from the lower Wealden Group (Cretaceous: Valanginian) of southern England" (PDF). Zootaxa. 2489: 47–66. doi:10.11646/zootaxa.2489.1.3.
^ abBlows, W. T. (1997). "A review of Lower and middle Cretaceous dinosaurs from England". In Lucas, S.G.; Kirkland, J.I.; Estep J.W. (eds.). Lower and Middle Cretaceous Terrestrial Ecosystems. New Mexico Museum of Natural History and Science Bulletin, 14. New Mexico Museum of Natural History and Science. pp. 29–38.
^ abcNorman, David B. (2004). "Basal Iguanodontia". In Weishampel, D.B.; Dodson, P.; Osmólska H. (eds.). The Dinosauria (2nd ed.). Berkeley: University of California Press. pp. 413–437. ISBN0-520-24209-2.
^Naish, Darren; Martill, David M. (2008). "Dinosaurs of Great Britain and the role of the Geological Society of London in their discovery: Ornithischia". Journal of the Geological Society, London. 165 (3): 613–623. Bibcode:2008JGSoc.165..613N. doi:10.1144/0016-76492007-154. S2CID 129624992.
April 13, 2024
hypselospinus, genus, iguanodontian, dinosaur, which, first, described, species, iguanodon, fittoni, richard, lydekker, 1889, specific, name, honouring, william, henry, fitton, temporal, range, early, valanginian, preꞒ, life, restorationscientific, classificat. Hypselospinus is a genus of iguanodontian dinosaur which was first described as a species of Iguanodon I fittoni by Richard Lydekker in 1889 the specific name honouring William Henry Fitton 1 HypselospinusTemporal range early Valanginian 140 Ma PreꞒ Ꞓ O S D C P T J K Pg N Life restorationScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClade DinosauriaClade OrnithischiaClade OrnithopodaClade AnkylopollexiaClade StyracosternaGenus HypselospinusNorman 2010Species H fittoniBinomial name Hypselospinus fittoni Lydekker 1889 originally Iguanodon fittoni SynonymsWadhurstia Carpenter amp Ishida 2010 Darwinsaurus Paul 2012 Huxleysaurus Paul 2012History edit nbsp Metatarsal III foot bone of specimen NHMUK R1148n formerly assigned to its own genus Huxleysaurus In May 2010 the fossils comprising Hypselospinus were by David Norman reclassified as a separate genus among them the holotype BMNH R1635 consisting of a left ilium a sacrum tail vertebrae and teeth The generic name is derived from Greek hypselos high and Latin spina thorn in reference to the high vertebral spines Later that same year a second group of scientists independently re classified I fittoni into a new genus they named Wadhurstia 2 which thus is a junior objective synonym of Hypselospinus Hypselospinus lived during the lower Valanginian stage around 140 million years ago 2 3 A contemporary of Barilium also once thought to be a species of Iguanodon Hypselospinus was a lightly built iguanodontian estimated at 6 metres 19 7 ft long 4 The species Iguanodon fittoni was described from remains discovered in 1886 alongside an unnamed ichthyosaur in the lower Valanginian age Lower Cretaceous Wadhurst Clay 2 of Shornden East Sussex England 5 Remains from Spain may also pertain to it Norman 2004 wrote that three partial skeletons are known for it 5 but this is an error 6 Hypselospinus is separated from Barilium on the basis of vertebral and pelvic characters size and build 4 For example Barilium was more robust than Hypselospinus with large Camptosaurus like vertebrae featuring short neural spines whereas Hypselospinus is known for its long narrow and steeply inclined neural spines 5 References edit Lydekker Richard 1889 Notes on New and other dinosaurian remains Geological Magazine 6 8 352 356 Bibcode 1889GeoM 6 352L doi 10 1017 S0016756800176587 a b c Carpenter K and Ishida Y 2010 Early and Middle Cretaceous Iguanodonts in Time and Space permanent dead link Journal of Iberian Geology 36 2 145 164 Norman David B 2010 A taxonomy of iguanodontians Dinosauria Ornithopoda from the lower Wealden Group Cretaceous Valanginian of southern England PDF Zootaxa 2489 47 66 doi 10 11646 zootaxa 2489 1 3 a b Blows W T 1997 A review of Lower and middle Cretaceous dinosaurs from England In Lucas S G Kirkland J I Estep J W eds Lower and Middle Cretaceous Terrestrial Ecosystems New Mexico Museum of Natural History and Science Bulletin 14 New Mexico Museum of Natural History and Science pp 29 38 a b c Norman David B 2004 Basal Iguanodontia In Weishampel D B Dodson P Osmolska H eds The Dinosauria 2nd ed Berkeley University of California Press pp 413 437 ISBN 0 520 24209 2 Naish Darren Martill David M 2008 Dinosaurs of Great Britain and the role of the Geological Society of London in their discovery Ornithischia Journal of the Geological Society London 165 3 613 623 Bibcode 2008JGSoc 165 613N doi 10 1144 0016 76492007 154 S2CID 129624992 Retrieved from https en wikipedia org w index php title Hypselospinus amp oldid 1195138361, wikipedia, wiki, book, books, library,
