Solanocrinus thiollieri is an extinct species of crinoids from Jura, France. Like other feather stars, Solanocrinus did not have a stem and was not attached to the ocean floor. Instead, it possessed 22 prehensile tendrils, called "cirri," which it used to grab onto rocks. References Prehistoric crinoid genera Jurassic crinoids Cretaceous crinoids Fossils of France Late Jurassic genus first appearances Cretaceous genus extinctions