🦕 Prehistoric World Map

Eopachyrucos fossil map

Where fossils of Eopachyrucos 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 →

Eopachyrucos
Image: Dozo, M. T., Ciancio, M., Bouza, P. J., & Martínez, G., CC BY 3.0, via Wikimedia Commons
GroupEarly mammals
Lived48–21 million years ago (Lutetian to Aquitanian)
PeriodsPaleogene, Neogene
FamilyInteratheriidae
Named byAmeghino 1901
Fossil records20 occurrences at 7 locations (PBDB)
Found inArgentina, Uruguay
Rock formationstxn:43409, Sarmiento, Fray Bentos

About Eopachyrucos

Eopachyrucos is an extinct genus of interatheriid notoungulates that lived from the Middle Eocene to the Late Oligocene of Argentina and Uruguay. Fossils of this genus have been found in the Sarmiento Formation of Argentina and the Fray Bentos Formation of Uruguay.

Text in “About” is quoted from the Wikipedia article Eopachyrucos (revision 1328098632), 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: Q113638577.

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