Tetramerorhinus fossil map
Where fossils of Tetramerorhinus 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 | 20.45–11 million years ago (Burdigalian to Tortonian) |
| Periods | Neogene |
| Family | Proterotheriidae |
| Named by | Ameghino 1894 |
| Fossil records | 56 occurrences at 20 locations (PBDB) |
| Found in | Argentina, Peru |
| Rock formations | Pinturas, Santa Cruz, Ipururo, Sarmiento |
About Tetramerorhinus
Tetramerorhinus is an extinct genus of proterotheriid litoptern that lived during the Early and Middle Miocene in what is now Argentina and Peru.
Text in “About” is quoted from the Wikipedia article Tetramerorhinus (revision 1348517966), 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: Q3769142.
