Thrichomys fossil map
Where fossils of Thrichomys have been found, shown on the Earth as it looked about 0 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 0 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 | 2.58 million years ago to the present (Gelasian to Holocene) |
| Periods | Quaternary |
| Family | Echimyidae |
| Named by | Trouessart 1881 |
| Fossil records | 30 occurrences at 14 locations (PBDB) |
| Found in | Brazil |
| Rock formations | txn:42051 |
About Thrichomys
Thrichomys is a genus of South American rodents in the family Echimyidae. It contains at least five species, found in Bolivia, Brazil and Paraguay. They are as follows:
Thrichomys apereoides - Common punaré
Thrichomys fosteri - Foster's punaré
Thrichomys inermis - Highlands punaré
Thrichomys laurentius - Sao Lourenço punaré
Thrichomys pachyurus - Paraguayan punaré
Text in “About” is quoted from the Wikipedia article Thrichomys (revision 1368450171), 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: Q846023.