A marine "cemetery" from the Ordovician (ca. 450 million years ago) with brittle stars (ophiuroids), cystoidea, sea stars (asteroidea) and trilobites. All were scavengers or detritivores, but in the absence of bite marks it is unclear which one was about to eat which one. The fossiles were found in Erfoud, Morocco, and are on display at the Musée cantonal de géologie in Lausanne, Switzerland.
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