Pteronarctos fossil map
Where fossils of Pteronarctos have been found, shown on the Earth as it looked about 15 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 15 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 | 20.45–13.82 million years ago (Burdigalian to Langhian) |
| Periods | Neogene |
| Named by | Barnes 1989 |
| Fossil records | 10 occurrences at 4 locations (PBDB) |
| Found in | United States |
| Rock formations | Astoria |
About Pteronarctos
Pteronarctos is a genus of basal pinnipediform from middle Miocene marine deposits in Oregon.
Two species of Pteronarctos are known, P. goedertae and P. piersoni. Although originally described as a member of Enaliarctidae, cladistic analyses place Pteronarctos as sister to pinnipeds, in the clade Pinnipediformes.
Text in “About” is quoted from the Wikipedia article Pteronarctos (revision 1328040837), 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: Q30693680.
