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their lower teeth are not visible and rest inside their upper teeth and mouth and they lack the notch
Dimensions: 35MM
The fossils preserved in this slab include early echinoderms (spiny-skinned marine invertebrate animals) known as echinoids and ophiuroids (brittle stars)
Their disappearance coincided with the mass extinction event that also wiped out the dinosaurs
19.7" Brittle Star Ophiura Sp Starfish Mortality Plate Fossil Ordovician Age COA & Stand Crab their lower teeth are notLocation: Kataoua Formation, Blekus, Morocco Weight: 8 Pounds 15. 5 Ounces Dimension: 19. 7 Inches Long, 10 Inches Wide, 1. 1 Inches Thick (Plate) Comes with a Certificate of Authenticity. Comes with a Free Stand. The item pictured is the one you will receive. Brittlestar Ophiura Sp This intriguing limestone slab was extracted from Middle Upper Ordovician (about 450 million years old) rocks in the Anti Atlas part of the Atlas Mountains of Morocco.
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