Odobenus fossil map
Where fossils of Odobenus have been found, shown on the Earth as it looked about 0 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 0 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 | 7.246 million years ago to the present (Messinian to Holocene) |
| Periods | Neogene, Quaternary |
| Family | Odobenidae |
| Named by | Brisson 1762 |
| Fossil records | 404 occurrences at 192 locations (PBDB) |
| Found in | Canada, United States, Netherlands, Greenland, Russia, Japan, Iceland, O2, Germany, Belgium … |
| Rock formations | txn:41336, Ijmuiden Ground, Shimonopporo, Acredale, South Bight II, Westkapelle Ground |
About Odobenus
The walrus (Odobenus rosmarus; plural walrus or walruses) is a large pinniped marine mammal with discontinuous distribution about the North Pole in the Arctic Ocean and subarctic seas of the Northern Hemisphere. It is the only extant species in the family Odobenidae and genus Odobenus. This species is subdivided into two subspecies: the Atlantic walrus (O. r. rosmarus), which lives in the Atlantic Ocean, and the Pacific walrus (O. r. divergens), which lives in the Pacific Ocean.
Adult walrus are characterised by prominent tusks and whiskers, and considerable bulk; adult males in the Pacific can weigh more than 2,000 kilograms (4,400 pounds) and, among pinnipeds, are exceeded in size only by the two species of elephant seals. Walrus live mostly in shallow waters above the continental shelves, spending significant amounts of their lives on the sea ice looking for benthic bivalve molluscs. Walruses are relatively long-lived, social and intelligent animals, and are considered a keystone species of the Arctic marine region.
Text in “About” is quoted from the Wikipedia article Walrus (revision 1380492728), 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: Q40994.
