Hesperomys fossil map
Where fossils of Hesperomys 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 | 0.129 million years ago to the present (Late Pleistocene to Holocene) |
| Periods | Quaternary |
| Family | Hesperomyidae |
| Named by | Waterhouse 1839 |
| Fossil records | 4 occurrences at 2 locations (PBDB) |
| Found in | Mexico |
| Rock formations | txn:364169 |
About Hesperomys
Vesper mice are rodents belonging to the genus Calomys. They are widely distributed in South America. Some species are notable as the vectors of Argentinian hemorrhagic fever and Bolivian hemorrhagic fever.
The genus was originally named Hesperomys, but was changed to Calomys in 1962.
Text in “About” is quoted from the Wikipedia article Vesper mouse (revision 1365786227), 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: Q857571.
