I also find it interesting that if you look at the map preview in the post above, you can see the sample sites in the Diamantina Zone sea floor where they found lots of remains.
So I wondered if this might be to do with the "highways" whales migrate along.
bluecorridors.org/explore/spec...
bluecorridors.org
Protecting Blue Corridors combines 30 years of satellite tracking data to identify critical whale habitats and migratory routes in an effort to aid global and regional conservation plans, mitigate thr...