Kermackodon fossil map
Where fossils of Kermackodon have been found, shown on the Earth as it looked about 160 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 160 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →
| Group | Early mammals |
|---|---|
| Lived | 168.2–165.3 million years ago (Bathonian) |
| Periods | Jurassic |
| Family | Kermackodontidae |
| Named by | Butler and Hooker 2005 |
| Fossil records | 14 occurrences at 2 locations (PBDB) |
| Found in | United Kingdom |
| Rock formations | Forest Marble |
About Kermackodon
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). 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. A 2020 study considered it to be more closely related to multituberculates than to euharamiyidans, while the 2022 study considered it to be a member of Euharamiyida.
Text in “About” is quoted from the Wikipedia article Kermackodon (revision 1312633833), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q110933250.
