{{Short description|Extinct genus of mammals}} {{automatic taxobox | fossil_range = {{fossilrange|Bathonian}} | image = Kermackodon.png | image_alt = | image_caption = Teeth of ''Kermackodon'', including M2 upper molar (A), p4 lower last premolar (B) and a P3 or P4 upper premolar (C) | taxon = Kermackodon | authority = Butler & Hooker, 2005 | type_species = ''Kermackodon multicuspis'' | type_species_authority = Butler & Hooker, 2005 | subdivision_ranks = Other species | subdivision = '''''K. oxfordensis''''' <small>(Kermack ''et al.'', 1998) (Originally ''Eleutherodon oxfordensis'' (genus name preoccupied))</small> }} '''''Kermackodon''''' is a genus of extinct allotherian mammaliform, known from the Middle Jurassic of England. It combines features of multituberculates with those of euharamiyidans. The remains of type species, ''K. multicuspis'' were collected from Kirtlington Quarry in Oxford, England, by a team lead from UCL led by Professor Kenneth Kermack after whom the taxon is named, from sediments of the Forest Marble Formation, dating to the Bathonian stage of the Middle Jurassic. The genus and species were named by Percy M. Butler and Jerry Hooker in 2005. The remains comprise a left upper molar (M2), a lower last premolar, initially considered a left but later considered more likely to be right (p4), and an incomplete non-last upper premolar (P3 or P4).<ref>{{Cite book|last1=M.|first1=Butler, Percy|url=http://worldcat.org/oclc/1008691823|title=New teeth of allotherian mammals from the English Bathonian, including the earliest multituberculates|last2=Hooker|first2=Jerry J.|date=2005|publisher=Acta Paleontologica Polonica|oclc=1008691823}}</ref><ref name=":0">{{Cite journal|last1=Averianov|first1=Alexander O.|last2=Martin|first2=Thomas|last3=Lopatin|first3=Alexey V.|last4=Schultz|first4=Julia A.|last5=Schellhorn|first5=Rico|last6=Krasnolutskii|first6=Sergei|last7=Skutschas|first7=Pavel|last8=Ivantsov|first8=Stepan|date=2020-04-30|title=Multituberculate mammals from the Middle Jurassic of Western Siberia, Russia, and the origin of Multituberculata|url=http://dx.doi.org/10.1002/spp2.1317|journal=Papers in Palaeontology|volume=7|issue=2|pages=769–787|doi=10.1002/spp2.1317|s2cid=219067218|issn=2056-2799|url-access=subscription}}</ref> A second species, ''K. oxfordensis,'' from Kirtlington and also sediments of the White Limestone Formation at Woodeaton Quarry was assigned to the genus in 2022, originally placed in the separate genus ''Eleutherodon'', genus name preoccupied by ''Eleutherodon'' Mercerat, 1891.<ref name=":1">{{Cite journal |last1=Mao |first1=Fangyuan |last2=Brewer |first2=Philippa |last3=Hooker |first3=Jerry J. |last4=Meng |first4=Jin |date=2022-12-31 |title=New allotherian specimens from the Middle Jurassic Woodeaton Quarry (Oxfordshire) and implications for haramiyidan diversity and phylogeny |url=https://www.tandfonline.com/doi/full/10.1080/14772019.2022.2097021 |journal=Journal of Systematic Palaeontology |language=en |volume=20 |issue=1 |pages=1–37 |doi=10.1080/14772019.2022.2097021 |s2cid=251708147 |issn=1477-2019|url-access=subscription }}</ref> A 2020 study considered it to be more closely related to multituberculates than to euharamiyidans,<ref name=":0" /> while the 2022 study considered it to be a member of Euharamiyida.<ref name=":1" />
== References == {{Reflist}}
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Category:Multituberculata Category:Prehistoric mammal genera