SPECIES: Spinadiscus lefebvrei - Edrioasteroid
LOCATION: Kaid Errami, South Morocco
FORMATION: Ktaoua Formation
SIZE: 26.6 mm • 1.05 in
WEIGHT: 572 g • 20.18 oz
Edrioasteroidea is an extinct class of echinoderms. The living animal would have resembled a pentamerously symmetrical disc or cushion. They were obligate encrusters and attached themselves to inorganic or biologic hard substrates (frequently hardgrounds or brachiopods).
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- Top Rare Association of 16 Spinadiscus Lower Ordovician
- Geological Period
- Lower Ordovician (480 million years)
- Good condition
- 572 g