University of Oklahoma paleontologists recently discovered a 450-million-year-old fossilized soft tissue from a species related to the starfish, a finding that is one of two known examples of this ...

Echinoderms, such as starfish, sea urchins and sea lilies, use small, flexible, tubular projections called "tube feet" for locomotion, feeding, respiration and sensory perception. Crinoids, a subgroup ...

Officials say an extraordinarily rare discovery has been made by a University of Oklahoma palentologistBefore the oldest dinosaur, before animals or even plant ...

Before the oldest dinosaur, before animals or even plants had expanded onto dry land, ancient relatives of starfish called ...