Echinopsis (sea urchin)

Echinopsis is an extinct genus of sea urchins in the class Echinoidea. These slow-moving low-level epifaunal grazers lived from the Cretaceous to the Paleogene periods (125.45 - 5.332 Ma). Fossils of this genus have been found in the sediments of Madagascar, Pakistan, Senegal, Sudan, United States and Switzerland.

Echinopsis (sea urchin)

Echinopsis is an extinct genus of sea urchins in the class Echinoidea. These slow-moving low-level epifaunal grazers lived from the Cretaceous to the Paleogene periods (125.45 - 5.332 Ma). Fossils of this genus have been found in the sediments of Madagascar, Pakistan, Senegal, Sudan, United States and Switzerland.