Scientists discover evolutionary link to modern-day echinoderms

Scientists at The Ohio State University have discovered a new species that lived more than 500 million years ago—a form of ancient echinoderm that was ancestral to modern-day groups such as sea cucumbers, sea urchins, sea stars, brittle stars and crinoids. The fossil shows a crucial evolutionary step by echinoderms that parallels the most important ecological change to have taken place in marine sediments.
Read more: https://news.osu.edu/scientists-discover-evolutionary-link-to-modern-day-sea-echinoderms/?source=Snapzu