Interatherium fossil map
Where fossils of Interatherium have been found, shown on the Earth as it looked about 15 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 15 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 | 20.45–13.8 million years ago (Burdigalian to Serravallian) |
| Periods | Neogene |
| Family | Interatheriidae |
| Named by | Ameghino 1887 |
| Fossil records | 72 occurrences at 26 locations (PBDB) |
| Found in | Argentina |
| Rock formations | Santa Cruz, Collón Cura, Sarmiento, Cerro Boleadoras |
About Interatherium
Interatherium is an extinct genus of interatheriid notoungulate that lived from the Early to Middle Miocene (Colhuehuapian-Mayoan). Fossils of this genus have been found in the Santa Cruz, Collón Curá and Sarmiento Formations in Argentina.
Text in “About” is quoted from the Wikipedia article Interatherium (revision 1375521217), 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: Q1097382.
