Photo Blog with many different types of seashells
The sand dollar is a flat-bodied, burrowing sea urchin. It belongs to the Clypeasteroida order and is very popular with collectors. Some varieties are not flat and are known as sand cakes or cake urchins.
The sand dollar is a flat-bodied, burrowing sea urchin. It belongs to the Clypeasteroida order and is very popular with collectors. Some varieties are not flat and are known as sand cakes or cake urchins.
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