nature & planetScienceDaily450 million years ago

Paleontologists discover “one-in-a-million” fossil with 450-million-year-old soft tissue

from ScienceDaily

Scientists have discovered a remarkably preserved 450-million-year-old fossil containing soft tissues from an ancient starfish relative, revealing unexpected details about marine life more than 200 million years before dinosaurs existed. Found in a museum collection, the extraordinarily rare specimen offers new clues about how Earth's earliest reef animals fed, survived, and evolved.

explained

Soft tissue is tissue in the body that connects, surrounds, or supports internal organs and bones. It includes muscle, tendons, ligaments, fat, fibrous tissue, lymph and blood vessels, fasciae, and synovial membranes. Unlike bones and teeth, soft tissue is not hardened by ossification or calcification.

Background adapted from Wikipedia: Soft tissue ↗ · text CC BY-SA 4.0
so what

Most of what we know about early animals comes from hard parts such as shells. Soft tissue shows how they ate and lived.

fun fact

Starfish belong to the echinoderms, a group that also includes sea urchins and sea cucumbers.

more on this

Illustrative photo · François Michonneau Hectonichus Philippe Bourjon Hectonichu…, CC BY-SA 4.0, via Wikimedia Commons