🦕 Prehistoric World Map

Plionarctos fossil map

Where fossils of Plionarctos 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
Lived9.4–0.129 million years ago (Tortonian to Chibanian)
PeriodsNeogene, Quaternary
FamilyUrsidae
Named byFrick 1926
Fossil records28 occurrences at 13 locations (PBDB)
Found inUnited States, France
Rock formationstxn:41301, Peace River, Ringold, Ash Hollow, Mt. Eden

About Plionarctos

Plionarctos is an extinct genus of short-faced bear endemic to North America from the Late Miocene to the Pliocene.

Text in “About” is quoted from the Wikipedia article Plionarctos (revision 1371791214), 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: Q3445718.

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