Tricoelodus fossil map
Where fossils of Tricoelodus 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 | 29–21 million years ago (Rupelian to Aquitanian) |
| Periods | Paleogene, Neogene |
| Family | Adianthidae |
| Named by | Ameghino 1897 |
| Fossil records | 8 occurrences at 4 locations (PBDB) |
| Found in | Argentina, Bolivia |
| Rock formations | Sarmiento, txn:43505, Salla |
About Tricoelodus
Tricoelodus is an extinct genus of adianthid litopterns that lived during the Late Oligocene in what is now Argentina and Bolivia. Fossils of this genus have been found in the Sarmiento Formation of Argentina and the Salla Formation of Bolivia.
Text in “About” is quoted from the Wikipedia article Tricoelodus (revision 1378559371), 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: Q115802019.
