Borisodon fossil map
Where fossils of Borisodon have been found, shown on the Earth as it looked about 85 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 85 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 | 93.9–89.8 million years ago (Turonian) |
| Periods | Cretaceous |
| Family | Zhelestidae |
| Named by | Archibald and Averianov 2012 |
| Fossil records | 2 occurrences at 1 locations (PBDB) |
| Found in | Kazakhstan |
| Rock formations | txn:67569 |
About Borisodon
Borisodon is an extinct genus of eutherians which existed in what is now Kazakhstan during the Turonian age. It was described by J. David Archibald and Alexander Averianov in 2012, as a new genus for the species Sorlestes kara, which was originally described by Nessov in 1993. The type specimen was a mandible (CCMGE 101/12455), discovered at Near Ashchikol' Lake, drill core. Borisodon was a tree-climbing insectivore.
Text in “About” is quoted from the Wikipedia article Borisodon (revision 1358945886), 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: Q4945484.
