Aletomeryx fossil map
Where fossils of Aletomeryx 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 | 23.1–12.5 million years ago (Chattian to Serravallian) |
| Periods | Paleogene, Neogene |
| Family | Palaeomerycidae |
| Named by | Lull 1920 |
| Fossil records | 38 occurrences at 17 locations (PBDB) |
| Found in | United States, Canada |
| Rock formations | Runningwater, txn:42624, Marsland, "middle Miocene", Torreya, Kramer Beds |
About Aletomeryx
Aletomeryx is an extinct genus of Artiodactyla, of the family Dromomerycidae, endemic to North America from the early Miocene epoch (Hemingfordian stage) 20.6—16.3 Ma, existing for approximately 4.3 million years.
Text in “About” is quoted from the Wikipedia article Aletomeryx (revision 1381390276), 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: Q4716516.
