''Kermackodon'' is an extinct genus of allotherian mammal, known from the Middle Jurassic of England. It combines features of

multituberculates Multituberculata (commonly known as multituberculates, named for the multiple tubercles of their teeth) is an extinct order of rodent-like mammals with a fossil record spanning over 130 million years. They first appeared in the Middle Jurassic, a ...

with those of euharamyidans. The remains of type species, ''K. multicuspis'' were collected from

Kirtlington Quarry Kirtlington Quarry is a geological Site of Special Scientific Interest west of Kirtlington in Oxfordshire. It is a Geological Conservation Review site, and it is part of the Kirtlington Quarry Local Nature Reserve. Kirtlington Quarry is one of ...

in Oxford, England, by a team lead from UCL led by Professor

Kenneth Kermack Kenneth A. Kermack (1919 – 2000) was a British palaeontologist at University College London most notable for his work on early mammals with his wife, Doris Mary Kermack. Among Kermack's other significant contributions was the observation ...

after whom the taxon is named, from sediments of the

Forest Marble Formation The Forest Marble is a geological formation in England. Part of the Great Oolite Group, it dates to the late Bathonian stage of the Middle Jurassic.Weishampel, David B; et al. (2004). "Dinosaur distribution (Middle Jurassic, Europe)." In: Weisha ...

, dating to the

Bathonian In the geologic timescale the Bathonian is an age and stage of the Middle Jurassic. It lasted from approximately 168.3 Ma to around 166.1 Ma (million years ago). The Bathonian Age succeeds the Bajocian Age and precedes the Callovian Age. Str ...

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). A second species, ''K''. ''oxfordensis,'' from Kirtlington and also sediments of the

White Limestone Formation The White Limestone Formation is a Bathonian geologic formation in the United Kingdom, dating to the Middle Jurassic, 168.3 to 166.1 million years ago. Fossil sauropod tracks have been reported from the formation.Weishampel, et al. (2004). "Dino ...

at Woodeaton Quarry was assigned to the genus in 2022, originally placed in the separate genus ''Eleutherodon.'' A 2020 study considered it to be more closely related to mutlituberculates than to euharamiyidans, while the 2022 study considered it to be a member of Euharamiyida.

References

{{Taxonbar, from=Q110933250 Multituberculates Prehistoric mammal genera