Kermackodon

Kermackodon is an extinct genus of mammal, known from the Middle Jurassic of England. It is considered to be the most primitive known multituberculate, and is amongst the oldest known members of the group. It combines features of that group with those of euharamyidans. The remains of the only known species, K. multicuspis were collected from Kirtlington Quarry in Oxford, England, by a team lead from UCL lead 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).[1][2]

Kermackodon Temporal range:
Teeth of Kermackodon, including M2 upper molar (A), p4 lower last premolar (B) and a P3 or P4 upper premolar (C)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Multituberculata
Genus:	†Kermackodon Butler & Hooker, 2005
Species:	†K. multicuspis
Binomial name
†Kermackodon multicuspis Butler & Hooker, 2005