fbpx
Wikipedia

Eucynodontia

April 12, 2024

Eucynodontia ("true dog teeth") is a clade of cynodont therapsids including mammals and most non-mammalian cynodonts. The oldest eucynodonts are known from the Early Triassic and possibly Late Permian. Eucynodontia includes two major subgroups, Cynognathia and Probainognathia.[1]

The clade was named in 1982 by Thomas Kemp, who defined it as all cynodonts more derived than Thrinaxodon.[2][3]

In 2001, Hopson and Kitching redefined the clade Eucynodontia as the least inclusive group containing Mammalia and Exaeretodon.[4]

Phylogeny edit

Cladogram after Stefanello et al. (2023):[5]

References edit

  1. ^ Rubidge, B.S.; Sidor, C.A. (2001). (PDF). Annual Review of Ecology, Evolution, and Systematics. 32: 449–480. doi:10.1146/annurev.ecolsys.32.081501.114113. Archived from the original (PDF) on 2012-03-21.
  2. ^ T.S. Kemp. 1982. Mammal-like Reptiles and the Origin of Mammals 363 pp
  3. ^ Martínez, R. N.; Fernandez, E.; Alcober, O. A. (2013). "A new non-mammaliaform eucynodont from the Carnian-Norian Ischigualasto Formation, Northwestern Argentina". Revista Brasileira de Paleontologia. 16: 61–76. doi:10.4072/rbp.2013.1.05.
  4. ^ James A. Hopson and James W. Kitching, 2001, "A Probainognathian Cynodont from South Africa and the Phylogeny of Nonmammalian Cynodonts" pp 5-35 in: PARISH A. JENKINS, JR., MICHAEL D. SHAPIRO, AND TOMASZ OWERKOWICZ, EDITORS, STUDIES IN ORGANISMIC AND EVOLUTIONARY BIOLOGY IN HONOR OF A. W. CROMPTON Bullettin of the Museum of Comparative Zoology. Harvard University 156(1)
  5. ^ Stefanello, M.; Martinelli, A. G.; Müller, R. T.; Dias-da-Silva, S.; Kerber, L. (2023). "A complete skull of a stem mammal from the Late Triassic of Brazil illuminates the early evolution of prozostrodontian cynodonts". Journal of Mammalian Evolution. doi:10.1007/s10914-022-09648-y.


 

This cynodont-related article is a stub. You can help Wikipedia by expanding it.

April 12, 2024
eucynodontia, true, teeth, clade, cynodont, therapsids, including, mammals, most, mammalian, cynodonts, oldest, eucynodonts, known, from, early, triassic, possibly, late, permian, includes, major, subgroups, cynognathia, probainognathia, eucynodontstemporal, r. Eucynodontia true dog teeth is a clade of cynodont therapsids including mammals and most non mammalian cynodonts The oldest eucynodonts are known from the Early Triassic and possibly Late Permian Eucynodontia includes two major subgroups Cynognathia and Probainognathia 1 EucynodontsTemporal range Early Triassic Holocene 251 0 Ma PreꞒ Ꞓ O S D C P T J K Pg NExamples of eucynodonts 1st row Trirachodon berryi Probainognathus jenseni 2nd row Brasilitherium riograndensis Castorocauda lutrasimilis 3rd row Ornithorhynchus anatinus platypus Loxodonta africana African bush elephant Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClade SynapsidaClade TherapsidaClade CynodontiaClade EpicynodontiaClade EucynodontiaKemp 1982Subgroups Kataigidodon Cynognathia ProbainognathiaThe clade was named in 1982 by Thomas Kemp who defined it as all cynodonts more derived than Thrinaxodon 2 3 In 2001 Hopson and Kitching redefined the clade Eucynodontia as the least inclusive group containing Mammalia and Exaeretodon 4 Phylogeny editCladogram after Stefanello et al 2023 5 ProcynosuchusGalesaurusThrinaxodonPlatycraniellusEucynodontia Cynognathia CynognathusGomphodontia DiademodonLangbergiaTrirachodonSinognathusTraversodontidae PascualgnathusLuangwaScalenodonMandagomphodonMassetognathusExaeretodonProbainognathia LumkuiaChiniquodonProbainognathidae ProbainognathusBonacynodonEcteniniidae TrucidocynodonEctenion sic DiegocanisProtheriodonProzostrodontia Prozostrodontidae ProzostrodonPseudotheriumTherioherpetonIrajatheriumRiograndiaDiarthrognathusPachygenelusTritylodontidaeBotucaraitheriumBrasilodonMammaliaformesReferences edit Rubidge B S Sidor C A 2001 Evolutionary patterns among Permo Triassic therapsids PDF Annual Review of Ecology Evolution and Systematics 32 449 480 doi 10 1146 annurev ecolsys 32 081501 114113 Archived from the original PDF on 2012 03 21 T S Kemp 1982 Mammal like Reptiles and the Origin of Mammals 363 pp Martinez R N Fernandez E Alcober O A 2013 A new non mammaliaform eucynodont from the Carnian Norian Ischigualasto Formation Northwestern Argentina Revista Brasileira de Paleontologia 16 61 76 doi 10 4072 rbp 2013 1 05 James A Hopson and James W Kitching 2001 A Probainognathian Cynodont from South Africa and the Phylogeny of Nonmammalian Cynodonts pp 5 35 in PARISH A JENKINS JR MICHAEL D SHAPIRO AND TOMASZ OWERKOWICZ EDITORS STUDIES IN ORGANISMIC AND EVOLUTIONARY BIOLOGY IN HONOR OF A W CROMPTON Bullettin of the Museum of Comparative Zoology Harvard University 156 1 Stefanello M Martinelli A G Muller R T Dias da Silva S Kerber L 2023 A complete skull of a stem mammal from the Late Triassic of Brazil illuminates the early evolution of prozostrodontian cynodonts Journal of Mammalian Evolution doi 10 1007 s10914 022 09648 y nbsp This cynodont related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Eucynodontia amp oldid 1211134767, wikipedia, wiki, book, books, library,

article

, read, download, free, free download, mp3, video, mp4, 3gp, jpg, jpeg, gif, png, picture, music, song, movie, book, game, games.