View source for Biology:Peraiocynodon

{{Automatic taxobox
| name = ''Peraiocynodon''
| fossil_range = Middle Jurassic, {{fossil range|174.1|163.5}}
| taxon = Peraiocynodon
| authority = [[Biography:George Gaylord Simpson|Simpson]], 1929
| type_species = †'''''Peraiocynodon inexpectatus'''''
| type_species_authority = Simpson, 1929
| subdivision_ranks = [[Biology:Species|Species]]
| subdivision =
*†'''''P. inexpectatus''''' <small>Simpson, 1929</small>
*†'''''P. major''''' <small>Sigogneau-Russell, 2003</small>
}}

'''''Peraiocynodon''''' is an extinct mammaliaform from the family [[Biology:Docodonta|Docodonta]], found in the Middle Jurassic rocks of the United Kingdom. It is only known from isolated molar teeth found in the mammal bed at Kirtington cement quarry in Oxfordshire, England.

''Peraiocynodon'' was originally erected in 1929 with a single species named,<ref name="Simpson1929">Simpson GG. 1928. A Catalogue of the Mesozoic Mammalia in the Geological Department of the British Museum. British Museum.</ref> but it was later considered to be a synonym of ''[[Biology:Docodon|Docodon]]''.<ref name="Butler1939">Butler PM. 1939. [https://zslpublications.onlinelibrary.wiley.com/doi/abs/10.1111/j.1096-3642.1939.tb00719.x The teeth of the Jurassic mammals]. In Proceedings of the Zoological Society of London, 109:329-356). Oxford, UK: Blackwell Publishing Ltd.</ref> However, in 2003, the genus was resurrected and a new species, ''P. major'', was described based on new teeth found at Kirtington Cement Quarry in Oxfordshire.<ref name="SR2003">Sigogneau-Russell D. 2003. [http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.agro-article-ba929022-a6c3-4462-b147-d25b9927ae71/c/app48-357.pdf Docodonts from the British Mesozoic]. Acta Palaeontologica Polonica, 48(3)</ref> It remains uncertain whether one or both of these species of ''Peraiocynodon'' may be the milk teeth of another genus of docodontan, or whether they truly are separate species.

==References==
{{Reflist}}
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[[Category:Mammaliaformes]]



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