Reithrodon fossil map
Where fossils of Reithrodon 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 | 5 million years ago to the present (Zanclean to Holocene) |
| Periods | Neogene, Quaternary |
| Family | Cricetidae |
| Named by | Waterhouse 1837 |
| Fossil records | 44 occurrences at 19 locations (PBDB) |
| Found in | Argentina, Uruguay, Mexico |
| Rock formations | txn:41724, Lujan, Santa Clara, TafĂ del Valle, Monte Hermoso, Sopas |
About Reithrodon
Reithrodon is a genus of rodent in the family Cricetidae.
It contains the following living species:
Bunny rat (Reithrodon auritus)
Naked-soled conyrat (Reithrodon typicus)
The scientific name translates as "channel tooth" and refers to grooves on the upper incisors. The oldest fossils date from the late Pliocene, about four million years ago. The immediate ancestors of the genus may have evolved as the southern regions of South America became increasingly arid around the end of the Miocene.
Text in “About” is quoted from the Wikipedia article Reithrodon (revision 1248778545), 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: Q910219.
