Echinopsis (sea urchin)
Echinopsis is an extinct genus of sea urchins in the class Echinoidea.
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| Echinopsis from Sudan, perforated specimen to be threaded. On display at Galerie de paléontologie et d'anatomie comparée in Paris | |
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| Genus: | Echinopsis Agassiz, 1840 |
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.[1]
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