From the album: Westphalian cretaceous fossils
Together with sponges like Coeloptychium and others you can find sea-urchins in the campanian of Coesfeld. Normally you´ll find Echinocorys, Micraster and other irregular forms. Rarely regular ones like Salenia or Phymosoma. A nearly perfect one comes from Coesfelder Berg, size is around 6 cm, the best i´ve ever found