🦕 Prehistoric World Map

Nonotherium fossil map

Where fossils of Nonotherium 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 →

GroupEarly mammals
Lived5–2.58 million years ago (Zanclean to Piacenzian)
PeriodsNeogene
FamilyToxodontidae
Named byCastellanos 1942
Fossil records4 occurrences at 2 locations (PBDB)
Found inArgentina
Rock formationsBrochero

About Nonotherium

Nonotherium is an extinct genus of toxodontine toxodontid from the Montehermosan Brochero Formation of Argentina. It was described by Castellanos in 1942.

Text in “About” is quoted from the Wikipedia article Nonotherium (revision 1258133704), 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: Q25094568.

More early mammals