Sclerosaurus is an extinctgenus of procolophonidparareptile known from the Early to Middle Triassic of Germany and Switzerland. It contains a single species, Sclerosaurus armatus. It was fairly small, about 30 cm long, distinguished from other known parareptiles by the possession of long, backwardly projecting spikes, rear lower jaw teeth with slightly imbricating crowns, and a narrow band of back armor comprising two or three rows of sculptured osteoderms on either side of the midline.[1]
Traditional classifications, e.g. Carroll (1988) placed Sclerosaurus with the procolophonids, however some phylogenetic studies have found it to be a close relative of the pareiasaurs, and together with that group it forms the clade Pareiasauroidea.[2] More recent phylogenetic analyses place Sclerosaurus within Procolophonidae as originally suggested, and support its referral to the Leptopleuroninae. Sclerosaurus is most closely related to Scoloparia glyphanodon from Nova Scotia, Canada, and together they form the Sclerosaurini tribe within Leptopleuroninae.[3][1]
Referencesedit
^ abHans-Dieter Sues and Robert R. Reisz (2008). "Anatomy and Phylogenetic Relationships of Sclerosaurus armatus (Amniota: Parareptilia) from the Buntsandstein (Triassic) of Europe". Journal of Vertebrate Paleontology. 28 (4): 1031–1042. doi:10.1671/0272-4634-28.4.1031. S2CID 53967912.
^Jalil, N. E., & Janvier, P. (2005). Les pareiasaures (Amniota, Parareptilia) du Permien supérieur du Bassin d’Argana, Maroc. Geodiversitas, 27(1), 35-132.
^Cisneros, J. C. (2008). "Phylogenetic relationships of procolophonid parareptiles with remarks on their geological record". Journal of Systematic Palaeontology. 6 (3): 345–366. doi:10.1017/S1477201907002350. S2CID 84468714.
sclerosaurus, extinct, genus, procolophonid, parareptile, known, from, early, middle, triassic, germany, switzerland, contains, single, species, armatus, fairly, small, about, long, distinguished, from, other, known, parareptiles, possession, long, backwardly,. Sclerosaurus is an extinct genus of procolophonid parareptile known from the Early to Middle Triassic of Germany and Switzerland It contains a single species Sclerosaurus armatus It was fairly small about 30 cm long distinguished from other known parareptiles by the possession of long backwardly projecting spikes rear lower jaw teeth with slightly imbricating crowns and a narrow band of back armor comprising two or three rows of sculptured osteoderms on either side of the midline 1 SclerosaurusTemporal range Early Middle Triassic Olenekian Anisian PreꞒ Ꞓ O S D C P T J K Pg N Fossil Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Reptilia Clade Parareptilia Order Procolophonomorpha Family Procolophonidae Tribe Sclerosaurini Genus Sclerosaurusvon Meyer 1857 Type species Sclerosaurus armatusvon Meyer 1857 Restoration Traditional classifications e g Carroll 1988 placed Sclerosaurus with the procolophonids however some phylogenetic studies have found it to be a close relative of the pareiasaurs and together with that group it forms the clade Pareiasauroidea 2 More recent phylogenetic analyses place Sclerosaurus within Procolophonidae as originally suggested and support its referral to the Leptopleuroninae Sclerosaurus is most closely related to Scoloparia glyphanodon from Nova Scotia Canada and together they form the Sclerosaurini tribe within Leptopleuroninae 3 1 References edit a b Hans Dieter Sues and Robert R Reisz 2008 Anatomy and Phylogenetic Relationships of Sclerosaurus armatus Amniota Parareptilia from the Buntsandstein Triassic of Europe Journal of Vertebrate Paleontology 28 4 1031 1042 doi 10 1671 0272 4634 28 4 1031 S2CID 53967912 Jalil N E amp Janvier P 2005 Les pareiasaures Amniota Parareptilia du Permien superieur du Bassin d Argana Maroc Geodiversitas 27 1 35 132 Cisneros J C 2008 Phylogenetic relationships of procolophonid parareptiles with remarks on their geological record Journal of Systematic Palaeontology 6 3 345 366 doi 10 1017 S1477201907002350 S2CID 84468714 nbsp This article about a prehistoric reptile is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Sclerosaurus amp oldid 1162373693, wikipedia, wiki, book, books, library,
