Hegetotherium fossil map
Where fossils of Hegetotherium 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 | 29–7.246 million years ago (Rupelian to Tortonian) |
| Periods | Paleogene, Neogene |
| Family | Hegetotheriidae |
| Named by | Ameghino 1887 |
| Fossil records | 66 occurrences at 29 locations (PBDB) |
| Found in | Argentina, Chile, Bolivia, Uruguay |
| Rock formations | Santa Cruz, Deseado, Nazareno, Galera, Chichinales, txn:43439 |
About Hegetotherium
Hegetotherium is a small to middle-sized extinct genus of mammals, ranging from the size of rabbit (about 20-30 cm/12-16") to a beaver (about 3 ft/1 m) from the Early to Middle Miocene (Colhuehuapian-Colloncuran in the SALMA classification), through Pliocene sites of South America. Fossils of this genus have been found in the Cerro Bandera, Cerro Boleadoras, Chichinales, Collón Curá, Santa Cruz and Sarmiento Formations of Argentina, the Nazareno Formation of Bolivia, and the Galera and Río Frías Formations of Chile.
Text in “About” is quoted from the Wikipedia article Hegetotherium (revision 1369804824), 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: Q56217045.
