🦕 Prehistoric World Map

Microcosmodon fossil map

Where fossils of Microcosmodon have been found, shown on the Earth as it looked about 56 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 56 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
Lived66–56 million years ago (Danian to Thanetian)
PeriodsPaleogene
FamilyMicrocosmodontidae
Named byJepsen 1930
Fossil records54 occurrences at 14 locations (PBDB)
Found inUnited States, Canada
Rock formationsFort Union, txn:89394, Ravenscrag, Paskapoo, Goler

About Microcosmodon

Microcosmodon is a mammal genus from the Paleocene of North America. It was a member of the extinct order Multituberculata, and lies within the suborder Cimolodonta and family Microcosmodontidae. The genus Microcosmodon was named by G.L. Jepsen in 1930.

Text in “About” is quoted from the Wikipedia article Microcosmodon (revision 1368551407), 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: Q767786.

More early mammals