Odobenus rosmarus Fossil Full Lower Mandible – Pleistocene | St. Lawrence Island, Alaska

A remarkable fossil full lower mandible from Odobenus rosmarus (Atlantic/Pacific walrus), recovered from Pleistocene-age deposits on St. Lawrence Island, near the lower Kuskokwim River Delta, Alaska, USA. This specimen is approximately 20,000 years old and represents one of the most iconic marine mammals of the Arctic and sub-Arctic regions.

St. Lawrence Island sits in the Bering Sea between Alaska and Siberia and is one of the world's most significant sites for Pleistocene-era marine mammal fossils. The complete lower mandible is a rare and impressive find, showcasing the robust bone structure that supported the walrus's powerful tusks and feeding apparatus.

A centrepiece-quality specimen for any serious fossil or natural history collection.

• Species: Odobenus rosmarus (Walrus)
• Element: Full lower mandible
• Age: Pleistocene (~20,000 years old)
• Locality: St. Lawrence Island, lower Kuskokwim River Delta, Alaska, USA
• Condition: Fossil, natural preservation