Younginiformes is a group of diapsid reptiles known from the Permian-Triassic of Africa and Madagascar. It has been used as a replacement for "Eosuchia".[1] Younginiformes (including Acerosodontosaurus, Hovasaurus, Kenyasaurus, Tangasaurus, Thadeosaurus and Youngina) were historically suggested to be lepidosauromorphs, but were later suggested to be basal non-saurianneodiapsids.[2][3] The group is sometimes divided into two families, Tangasauridae and Younginidae. The monophyly of the group is disputed. A 2009 study found them to be an unresolved polytomy at the base of Neodiapsida,[4] while a 2011 study recovered the group as paraphyletic.[5] A 2022 study recovered the Younginiformes as a monophyletic group of basal neodiapsid reptiles, also including Claudiosaurus and Saurosternon as part of the group.[6] Some younginiforms like Hovasaurus and Acerosodontosaurus are thought to have had an amphibious lifestyle, while others like Kenyasaurus, Thadeosaurus and Youngina were probably terrestrial.[4]
^Gauthier, J.; Estes, R.; de Queiroz, K. (1988). "A phylogenetic analysis of Lepidosauromorpha" (PDF). In R. Estes; G. Pregill (eds.). Phylogenetic relationships of the lizard families. Stanford: Stanford University Press. pp. 15–98. (PDF) from the original on 2023-12-09.
^Laurin, Michel (January 1991). "The osteology of a Lower Permian eosuchian from Texas and a review of diapsid phylogeny". Zoological Journal of the Linnean Society. 101 (1): 59–95. doi:10.1111/j.1096-3642.1991.tb00886.x.
^Ezcurra, Martín D.; Scheyer, Torsten M.; Butler, Richard J. (2014-02-27). Ketmaier, Valerio (ed.). "The Origin and Early Evolution of Sauria: Reassessing the Permian Saurian Fossil Record and the Timing of the Crocodile-Lizard Divergence". PLOS ONE. 9 (2): e89165. Bibcode:2014PLoSO...989165E. doi:10.1371/journal.pone.0089165. ISSN 1932-6203. PMC3937355. PMID 24586565.
^ abBickelmann; Müller; Reisz (2009). "The enigmatic diapsid Acerosodontosaurus piveteaui (Reptilia: Neodiapsida) from the Upper Permian of Madagascar and the paraphyly of "younginiform" reptiles". Canadian Journal of Earth Sciences. 46 (9): 651–661. Bibcode:2009CaJES..46..651S. doi:10.1139/E09-038.
^ abRobert R. Reisz; Sean P. Modesto; Diane M. Scott (2011). "A new Early Permian reptile and its significance in early diapsid evolution". Proceedings of the Royal Society B. 278 (1725): 3731–3737. doi:10.1098/rspb.2011.0439. PMC3203498. PMID 21525061.
^ abSimões, Tiago R.; Kammerer, Christian F.; Caldwell, Michael W.; Pierce, Stephanie E. (2022-08-19). "Successive climate crises in the deep past drove the early evolution and radiation of reptiles". Science Advances. 8 (33): eabq1898. Bibcode:2022SciA....8.1898S. doi:10.1126/sciadv.abq1898. ISSN 2375-2548. PMC9390993. PMID 35984885.
Sourcesedit
Lambert, D.; Naish, D.; Wyse, E. (2001). Encyclopedia of Dinosaurs and prehistoric life. London: Dorling Kindersley. p. 77. ISBN0-7513-0955-9.
This article about a Permianreptile is a stub. You can help Wikipedia by expanding it.
younginiformes, group, diapsid, reptiles, known, from, permian, triassic, africa, madagascar, been, used, replacement, eosuchia, including, acerosodontosaurus, hovasaurus, kenyasaurus, tangasaurus, thadeosaurus, youngina, were, historically, suggested, lepidos. Younginiformes is a group of diapsid reptiles known from the Permian Triassic of Africa and Madagascar It has been used as a replacement for Eosuchia 1 Younginiformes including Acerosodontosaurus Hovasaurus Kenyasaurus Tangasaurus Thadeosaurus and Youngina were historically suggested to be lepidosauromorphs but were later suggested to be basal non saurian neodiapsids 2 3 The group is sometimes divided into two families Tangasauridae and Younginidae The monophyly of the group is disputed A 2009 study found them to be an unresolved polytomy at the base of Neodiapsida 4 while a 2011 study recovered the group as paraphyletic 5 A 2022 study recovered the Younginiformes as a monophyletic group of basal neodiapsid reptiles also including Claudiosaurus and Saurosternon as part of the group 6 Some younginiforms like Hovasaurus and Acerosodontosaurus are thought to have had an amphibious lifestyle while others like Kenyasaurus Thadeosaurus and Youngina were probably terrestrial 4 YounginiformesTemporal range Middle Permian Early Triassic PreꞒ Ꞓ O S D C P T J K Pg NSkull of YounginaScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ReptiliaClade NeodiapsidaOrder YounginiformesRomer 1945Families Tangasauridae Haughton 1924 Younginidae Broom 1914Classification editIncluded genera Tangasauridae Acerosodontosaurus Currie 1980 Hovasaurus Piveteau 1926 Kenyasaurus Harris amp Carroll 1977 Saurosternon Huxley 1868 Tangasaurus Haughton 1924 Younginidae Claudiosaurus Carroll 1981 Heleosuchus Owen 1876 Thadeosaurus Carroll 1981 Youngina Broom 19142011 phylogeny showing a paraphyletic Younginiformes 5 Neodiapsida OrovenatorLanthanolaniaTangasauridae TangasaurusAcerosodontosaurusHovasaurusYounginidae ThadeosaurusYounginaClaudiosaurusSauria Phylogeny of Younginiformes from the 2022 study 6 Younginiformes Claudiosaurus germainiYoungina capensisHovasaurus bouleiAcerosodontosaurus piveteauiSaurosternon bainiiReferences edit Gauthier J Estes R de Queiroz K 1988 A phylogenetic analysis of Lepidosauromorpha PDF In R Estes G Pregill eds Phylogenetic relationships of the lizard families Stanford Stanford University Press pp 15 98 Archived PDF from the original on 2023 12 09 Laurin Michel January 1991 The osteology of a Lower Permian eosuchian from Texas and a review of diapsid phylogeny Zoological Journal of the Linnean Society 101 1 59 95 doi 10 1111 j 1096 3642 1991 tb00886 x Ezcurra Martin D Scheyer Torsten M Butler Richard J 2014 02 27 Ketmaier Valerio ed The Origin and Early Evolution of Sauria Reassessing the Permian Saurian Fossil Record and the Timing of the Crocodile Lizard Divergence PLOS ONE 9 2 e89165 Bibcode 2014PLoSO 989165E doi 10 1371 journal pone 0089165 ISSN 1932 6203 PMC 3937355 PMID 24586565 a b Bickelmann Muller Reisz 2009 The enigmatic diapsid Acerosodontosaurus piveteaui Reptilia Neodiapsida from the Upper Permian of Madagascar and the paraphyly of younginiform reptiles Canadian Journal of Earth Sciences 46 9 651 661 Bibcode 2009CaJES 46 651S doi 10 1139 E09 038 a b Robert R Reisz Sean P Modesto Diane M Scott 2011 A new Early Permian reptile and its significance in early diapsid evolution Proceedings of the Royal Society B 278 1725 3731 3737 doi 10 1098 rspb 2011 0439 PMC 3203498 PMID 21525061 a b Simoes Tiago R Kammerer Christian F Caldwell Michael W Pierce Stephanie E 2022 08 19 Successive climate crises in the deep past drove the early evolution and radiation of reptiles Science Advances 8 33 eabq1898 Bibcode 2022SciA 8 1898S doi 10 1126 sciadv abq1898 ISSN 2375 2548 PMC 9390993 PMID 35984885 Sources editLambert D Naish D Wyse E 2001 Encyclopedia of Dinosaurs and prehistoric life London Dorling Kindersley p 77 ISBN 0 7513 0955 9 nbsp This article about a Permian reptile is a stub You can help Wikipedia by expanding it vte nbsp This article about a Triassic reptile is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Younginiformes amp oldid 1210725576, wikipedia, wiki, book, books, library,
