Baurioidea

{{Short description|Extinct superfamily of therapsids}} {{Automatic taxobox | taxon = Baurioidea | fossil_range = [[Late Permian]] - [[Middle Triassic]] | image = Regisaurus1DB.jpg | image_caption = Life restoration of ''[[Regisaurus|Regisaurus jacobi]]'' | name = Baurioidea | authority = [[Robert Broom|Broom]], [[1911 in paleontology|1911]] | synonyms = * Bauriamorpha <small>[[D.M.S. Watson|Watson]] and [[Alfred Romer|Romer]], 1956</small> * Scaloposauria <small>Boonstra, 1953</small> | subdivision_ranks = Genera | subdivision = *''[[Dongusaurus]]'' *''[[Homodontosaurus]]'' *''[[Icticephalus]]'' *''[[Ictidodon]]'' *''[[Ictidodraco]]'' *''[[Ictidognathus]]'' *''[[Ictidosuchops]]'' *''[[Jiucaiyuangnathus]]''<ref name="Liu2024">{{cite journal|last1=Liu |first1=J. |last2=Abdala |first2=F. |year=2024 |title=A new small baurioid therocephalian from the Lower Triassic Jiucaiyuan Formation, Xinjiang, China |journal=Vertebrata PalAsiatica |doi=10.19615/j.cnki.2096-9899.240726 }}</ref> *''[[Macroscelesaurus]]'' *''[[Nanictocephalus]]'' *''[[Nanictosuchus]]'' *''[[Polycynodon]]'' *''[[Rhigosaurus]]'' *''[[Scalopocephalus]]'' *''[[Scalopodon]]'' *''[[Scalopolacerta]]'' *''[[Scaloposaurus]]'' *''[[Silphictidoides]]'' *''[[Silpholestes]]'' *''[[Yikezhaogia]]'' *'''Ictidosuchidae''' {{Small|[[Robert Broom|Broom]], 1903}} **''[[Blattoidealestes]]'' **''[[Chlynovia]]'' **''[[Ictidosuchoides]]'' **''[[Ictidosuchus]]'' **''[[Malasaurus]]'' **''[[Muchia]]''? **''[[Perplexisaurus]]''? **''[[Scalopodontes]]'' **''[[Scaloporhinus]]''? **''[[Scaloposuchus]]'' *[[Karenitidae]] **''[[Karenites]]'' **''[[Mupashi]]'' *[[Lycideopidae]] **''[[Choerosaurus]]'' **''[[Lycideops]]'' **''[[Tetracynodon]]'' *[[Regisauridae]] **''[[Regisaurus]]'' **''[[Urumchia]]'' *[[Ericiolacertidae]] **''[[Ericiolacerta]]'' **''[[Pedaeosaurus]]'' **''[[Silphedosuchus]]''? *[[Bauriidae]] **''[[Nothogomphodon]]'' **"[[Ordosiidae]]" ***''[[Hazhenia]]'' ***''[[Ordosiodon]]'' **[[Bauriinae]] ***''[[Antecosuchus]]'' ***''[[Bauria]]'' ***''[[Microgomphodon]]'' ***''[[Scalopognathus]]'' ***''[[Traversodontoides]]'' }}

'''Baurioidea''' is a [[superfamily (zoology)|superfamily]] of [[therocephalia]]n [[therapsid]]s. It includes advanced therocephalians such as ''[[Regisaurus]]'' and ''[[Bauria]]''.<ref name=HA09>{{cite journal |last=Huttenlocker |first=A. |year=2009 |title=An investigation into the cladistic relationships and monophyly of therocephalian therapsids (Amniota: Synapsida) |journal=Zoological Journal of the Linnean Society |volume=157 |issue=4 |pages=865–891 |doi=10.1111/j.1096-3642.2009.00538.x|doi-access=free }}</ref> The superfamily was named by [[South African people|South African]] paleontologist [[Robert Broom]] in 1911. Bauriamorpha, named by [[D. M. S. Watson]] and [[Alfred Romer]] in 1956, is a [[junior synonym]] of Baurioidea.

Many baurioids were once placed in a group called Scaloposauria. Scaloposaurs were characterized by their small size and reduced postorbital bar (a strut of bone behind the eye socket). Scaloposauria is no longer recognized as a valid taxon because it likely represents juvenile forms of many groups of therocephalians. Most scaloposaurs, including ''[[Scaloposaurus]]'' and ''Regisaurus'', are now classified in various positions within Bauroidea.<ref name=KTS86>{{cite journal |last=Kemp |first=T.S. |year=1986 |title=The skeleton of a baurioid therocephalian therapsid from the Lower Triassic (Lystrosaurus Zone) of South Africa |journal=Journal of Vertebrate Paleontology |volume=6 |issue=3 |pages=215–232 |doi=10.1080/02724634.1986.10011617 |jstor=4523096 |url=http://users.ox.ac.uk/~tskemp/pdfs/BaurioidJVP1986.pdf |format=PDF |access-date=26 March 2011 |archive-date=4 October 2012 |archive-url=https://web.archive.org/web/20121004044031/http://users.ox.ac.uk/~tskemp/pdfs/BaurioidJVP1986.pdf |url-status=dead }}</ref>

Many therocephalians once classified as scaloposaurians are now considered basal baurioids. The classification of these species is uncertain, as there have been no comprehensive phylogenetic analyses of scaloposaurian taxa. The validity of many of these species is questionable, as future studies may find some to be synonymous.<ref name=ARH08>{{cite journal |last1=Abdala |first1=F. |last2=Rubidge |first2=B. S. |last3=Heever |first3=J. A. van den |year=2008 |title=The oldest therocephalians (Therapsida, Eutheriodontia) and the early diversification of Therapsida |journal=Palaeontology|volume=51 |pages=1011–1024|doi=10.1111/j.1475-4983.2008.00784.x |issue=4|doi-access=free }}</ref> Below is a list of these taxa: * ''[[Ictidosuchoides]]'' * ''[[Scaloposaurus]]'' * ''[[Tetracynodon]]'' * ''[[Zorillodontops]]'' * ''[[Homodontosaurus]]'' * ''[[Ictidosuchops]]'' * ''[[Nanictidops]]'' * ''[[Scaloporhinus]]'' * ''[[Scaloposuchus]]'' * ''[[Choerosaurus]]'' * ''[[Ictidostoma]]'' * ''[[Ictidosuchus]]'' * ''[[Malasaurus]]'' * ''[[Chlynovia]]'' * ''[[Karenites]]'' * ''[[Perplexisaurus]]'' * ''[[Scalopodon]]'' * ''[[Scalopodontes]]''

==References== {{Reflist}}

==External links== *[https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=169917 Bauroidea] in the [[Paleobiology Database]]

[[Category:Baurioidea| ]] [[Category:Permian first appearances]] [[Category:Triassic extinctions]] [[Category:Vertebrate superfamilies]]