Notohippus fossil map
Where fossils of Notohippus 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 | 20.45–15.98 million years ago (Burdigalian) |
| Periods | Neogene |
| Named by | Ameghino 1891 |
| Fossil records | 6 occurrences at 2 locations (PBDB) |
| Found in | Argentina, Chile |
| Rock formations | Santa Cruz |
About Notohippus
Notohippus is an extinct genus of notoungulate mammal from the Early Miocene (Santacrucian in the SALMA classification) Santa Cruz Formation, Río Bote, Argentina.
Text in “About” is quoted from the Wikipedia article Notohippus (revision 1258133809), 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: Q30693988.
