Trachytherus fossil map
Where fossils of Trachytherus have been found, shown on the Earth as it looked about 30 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 30 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 | 33.9–17.5 million years ago (Rupelian to Burdigalian) |
| Periods | Paleogene, Neogene |
| Family | Mesotheriidae |
| Named by | Ameghino 1889 |
| Fossil records | 44 occurrences at 15 locations (PBDB) |
| Found in | Argentina, Bolivia, Peru |
| Rock formations | Sarmiento, txn:43424, Upper Moquegua, Salla, Deseado, Fray Bentos |
About Trachytherus
Trachytherus is an extinct genus of mesotheriid notoungulate that lived from the Late Oligocene to the Early Miocene in what is now South America.
Text in “About” is quoted from the Wikipedia article Trachytherus (revision 1291856976), 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: Q56217117.
