Rhynchippus fossil map
Where fossils of Rhynchippus have been found, shown on the Earth as it looked about 30 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 30 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 | 33.9–21 million years ago (Rupelian to Aquitanian) |
| Periods | Paleogene, Neogene |
| Named by | Ameghino 1897 |
| Fossil records | 30 occurrences at 10 locations (PBDB) |
| Found in | Argentina, Bolivia, Peru, Brazil |
| Rock formations | Sarmiento, txn:NF, Upper Moquegua, Salla, Petaca |
About Rhynchippus
Rhynchippus ("beaked horse") is an extinct genus of notoungulate mammals from the Late Oligocene (Deseadan in the SALMA classification) of South America. The genus was first described by Florentino Ameghino in 1897 and the type species is R. equinus, with lectotype MACN A 52–31. Fossils of Rhynchippus have been found in the Agua de la Piedra and Sarmiento Formations of Argentina, the Salla and Petaca Formations of Bolivia, the Tremembé Formation of Brazil, and the Moquegua Formation of Peru.
Text in “About” is quoted from the Wikipedia article Rhynchippus (revision 1314862211), 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: Q911486.
