Sand Dollars (Mepygurus marmonti) - Madagascar 5 ozFossil Type & Species:

5 ozFossil Type & Species: Concretion & Flexicalymene ouzreguiLocation: Anti-Atlas Region

Climate change taking place during their time caused sea levels to rise

Commonly found in India

Considered a grounding stone

Weight: 11

Sand Dollars (Mepygurus marmonti) - Madagascar 5 ozFossil Type & Species:Although sand dollars can still be found on beaches today, this species is extinct and a distant relative. Sand dollars did not appear on the evolutionary tree until the Paleocene (~60 million years ago). Mepygurus marmonti dates back to the Late Jurassic Period, roughly 150 million years ago. Even though they may look harmless, these were actually predatory creatures, often feeding on the larva of crustaceans. These specimens also possess pentameral