Bellona Platform

The Bellona Platform is a submarine geological feature encompassing the Chesterfield Islands (-19.35°N, 158.66667°W) and Bellona Reefs (-20.99995°N, 158.99931°W)  west of New Caledonia. It was once a 22800 km2 landmass, which became mostly submerged when sea levels rose at the end of the Last Glacial Maximum, 20,000 years ago. It might have played a role in the spread of flora and fauna, including humans, in the southwest Pacific.