Bizarre ancient sea creature brings evolution mystery to the surface

A new tunicate fossil, a close relative of vertebrates, is half a billion years old.

https://arstechnica.com/science/2023/07/bizarre-ancient-sea-creature-brings-evolution-mystery-to-the-surface/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social