Didolodus fossil map
Where fossils of Didolodus have been found, shown on the Earth as it looked about 45 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 45 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 | 56–27.3 million years ago (Ypresian to Rupelian) |
| Periods | Paleogene |
| Family | Didolodontidae |
| Named by | Ameghino 1897 |
| Fossil records | 42 occurrences at 7 locations (PBDB) |
| Found in | Argentina, Peru |
| Rock formations | Sarmiento, txn:42290, Pozo |
About Didolodus
Didolodus is an extinct genus of mammals from Middle Eocene Argentina. It is an ungulate mammal of uncertain affinities, possibly related to Litopterna, though this is uncertain due to the lack of reliable post-cranial remains, and for now remains Meridiungulata incertae sedis. Its remains were found in the Sarmiento Formation of Patagonia.
Didolodus probably was a quick-footed creature which probably lived like early ungulates such as Propalaeotherium, based on its highly similar teeth. It was around 60 centimetres (2.0 ft) in length, with short limbs and a long tail.
Text in “About” is quoted from the Wikipedia article Didolodus (revision 1295143766), 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: Q2636833.
