Steiromys fossil map
Where fossils of Steiromys 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 | 33.9–7.246 million years ago (Rupelian to Tortonian) |
| Periods | Paleogene, Neogene |
| Named by | Ameghino 1887 |
| Fossil records | 72 occurrences at 22 locations (PBDB) |
| Found in | Argentina, Colombia, Chile, Peru |
| Rock formations | Santa Cruz, Pinturas, Galera, txn:NF, Villavieja, Pebas |
About Steiromys
Steiromys is an extinct genus of caviomorph rodent that lived in South America during the Miocene epoch.
Text in “About” is quoted from the Wikipedia article Steiromys (revision 1361430861), 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: Q28337323.
