Mesogaulus fossil map
Where fossils of Mesogaulus 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 | 23.1–5.333 million years ago (Chattian to Messinian) |
| Periods | Paleogene, Neogene |
| Family | Mylagaulidae |
| Named by | Riggs 1899 |
| Fossil records | 52 occurrences at 17 locations (PBDB) |
| Found in | United States, Canada |
| Rock formations | Arikaree, Runningwater, Pawnee Creek, Sheep Creek, Rosebud, Cypress Hills |
About Mesogaulus
Mesogaulus is a genus of mylagaulid rodent from Miocene North America.
Text in “About” is quoted from the Wikipedia article Mesogaulus (revision 1340968134), 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: Q17276952.
