Fossil snail shells offer new tool for analyzing ancient ocean chemistry

Source: Science Daily

A collection of fossil shells from marine snails and clams is challenging a theory that says the world’s deadliest mass extinction was accompanied by severe ocean acidification. The study is the first to use shells from fossilized mollusks to investigate ocean chemistry, demonstrating a new tool that scientists can use to study the conditions of the planet’s deep past.

https://www.sciencedaily.com/releases/2022/01/220126165526.htm