Tremacyllus fossil map
Where fossils of Tremacyllus have been found, shown on the Earth as it looked about 5 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 5 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 | 11.63–0.0117 million years ago (Tortonian to Late Pleistocene) |
| Periods | Neogene, Quaternary |
| Family | Hegetotheriidae |
| Named by | Ameghino 1891 |
| Fossil records | 84 occurrences at 33 locations (PBDB) |
| Found in | Argentina |
| Rock formations | Cerro Azul, Monte Hermoso, Andalhuala, txn:43439, Salicas, Vorohué |
About Tremacyllus
Tremacyllus is an extinct genus of hegetotheriids. It lived from the Late Miocene to the Late Pleistocene (~7-0.012 Ma) and its fossilized remains were discovered in South America.
Text in “About” is quoted from the Wikipedia article Tremacyllus (revision 1336441813), 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: Q60978532.
