Sand dollar
Order of sea urchins / From Wikipedia, the free encyclopedia
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Sand dollars (also known as a sea cookie or snapper biscuit in New Zealand, or pansy shell in South Africa) are species of flat, burrowing sea urchins belonging to the order Clypeasteroida. Some species within the order, not quite as flat, are known as sea biscuits. Sand dollars can also be called "sand cakes" or "cake urchins".[2]
| Sand dollars | |
|---|---|
 | |
| A live individual of Clypeaster reticulatus (Mayotte) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Superorder: | Gnathostomata |
| Order: | Clypeasteroida |
| Suborders and families | |
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See text. | |