Sidi Ali Tafraout Errachidia Fossil Black Marble Quarry

Quarry Marble Fossils Bryozoans (Corals) Crinoids (Coral) form a class of marine animals belonging to the branching of echinoderms. Crinoids are sessile (fixed) or vagile (motile) animals resembling plants, but with an articulated calcareous skeleton, a kind of “root” (possibly placed at the end of a “stem”), and a “chalice” with long, flexible arms that allow them to filter the plankton that they eat into the water. Being echinoderms, their closest relatives in the living world are sea urchins, starfish, brittle stars and sea cucumbers. The first crinoids are attested in the Ordovician period, beginning about 500 million years ago. Despite a morphology reminiscent of a plant – a form to which they owe the common name “sea lily” – the crinoids (from the Greek krinon, lis, and eidos, form) are animals (metazoans). Marble fossils Bryozoan (Coral) Solid, good color and durability.