Sangarotherium fossil map
Where fossils of Sangarotherium have been found, shown on the Earth as it looked about 130 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 130 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 | 143.1–121.4 million years ago (Berriasian to Barremian) |
| Periods | Cretaceous |
| Named by | Averianov et al. 2018 |
| Fossil records | 2 occurrences at 1 locations (PBDB) |
| Found in | Russia |
| Rock formations | Batylykh |
About Sangarotherium
Sangarotherium is an extinct genus of eutriconodont mammal from the Early Cretaceous of Russia. It contains a single species, Sangarotherium aquilonium, known from a lower jaw fragment with one fully erupted tooth and fragments of two other teeth. This fossil was discovered at Teete, a microvertebrate site from the Batylykh Formation of the Sangar Series, in the Siberian Republic of Yakutia.
Like most other eutriconodonts, the complete molariform tooth has five pointed cusps aligned in a straight line (from front to back, cusps e, b, a, c, and d). The largest cusps (in order) are a, b, and c, while cusps e and d are very small. These cusp proportions differ from known eutriconodont families, so Sangarotherium is classified as Eutriconodonta incertae sedis. Sangarotherium also bears an extensive Meckel's groove, and it is the only eutriconodont with a prominent rugose coronoid facet. Bajpai et al 2024 recovers it as closely related to Volaticotherini.
Text in “About” is quoted from the Wikipedia article Sangarotherium (revision 1358764660), 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: Q65194716.
