Overview
- In June 2026, a peer‑reviewed Nature paper reported 485 fossil deposits and five modern whale falls found during 32 crewed submersible dives along roughly a 750‑mile stretch of the Diamantina Fracture Zone.
- The site contains bones dated as old as about 5.3 million years and includes a newly named extinct beaked whale, Pterocetus diamantinae, that helps trace beaked whale evolution.
- Scientists collected dozens of fossils and biological samples from the necropolis, and observed active whale falls hosting dense communities of bone‑eating worms, bivalves, brittle stars and other chemosynthetic organisms that may include species new to science.
- Researchers say the high density and long preservation result from a mix of factors: dense beaked‑whale rostra, V‑shaped trench topography that funnels carcasses, slow sediment burial and mineral crusting on bones.
- Teams are now carrying out taxonomic and geochemical analyses and planning more deep dives to test modelled estimates such as the authors' extrapolation of millions of remains and to build a fuller inventory of deep‑sea biodiversity.