News Headline

As oceans alkalized, life developed bones and shells

Source
Phys.org

Publication Date
2017-08-28

A critical feature of many multicellular lifeforms on Earth are hard, biological structures, such as animal bones and snail shells that are made from minerals. Tiny fossils recently discovered in Canada have pushed back the oldest known evidence of "bio-mineralization" to 810 million years ago.

Content
https://phys.org/news/2017-08-oceans-alkalized-life-bones-shells.html