�y��vlog

A significant section of the paper is dedicated to the abundant microfossils found at the site, which include fish teeth, scales and bone fragments.

This study has only worked on the planktonic foraminifera, however there are many other microfossil groups which have important roles in marine food webs which need to be studied.

A dip in hydrofluoric acid dissolved the matrix rock, concentrating the precious microfossils which she then analyzed under the microscope.

More work is required to determine if the microfossils were left behind by eukaryotic organisms, but the possibility would have significant implications, the scientists said.

The new discovery will prompt a re-think on other early microfossils.