Coniopternium fossil map
Where fossils of Coniopternium 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 | 29–21 million years ago (Rupelian to Aquitanian) |
| Periods | Paleogene, Neogene |
| Family | Macraucheniidae |
| Named by | Ameghino 1894 |
| Fossil records | 10 occurrences at 5 locations (PBDB) |
| Found in | Bolivia, Peru, Argentina |
| Rock formations | Upper Moquegua, txn:43493, Salla, Agua de la Piedra |
About Coniopternium
Coniopternium is an extinct genus of macraucheniids from the Late Oligocene of South America. Fossils of Coniopternium have been found in the Agua de la Piedra, Deseado, and Sarmiento Formations of Argentina,
the Salla Formation
of Bolivia,
and the Moquegua Formation of Peru.
Text in “About” is quoted from the Wikipedia article Coniopternium (revision 1294828451), 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: Q112167753.
