Clypeasteroida Echinodermata Animalia Flora and Fauna
Dorsally-flattened sea urchins, the sand dollars and sea biscuits.
Top: Science: Biology: Flora and Fauna: Animalia: Echinodermata: Clypeasteroida
- Mellita quinquiesperforata - Exercise from Invertebrate Anatomy OnLine covering the systematics, test (shell), external and internal anatomy of this sand dollar.
- MSN Learning & Research Plus: Sand Dollar - Online encyclopedia article.
- Clypeaster rosaceus - Exercise from Invertebrate Anatomy OnLine covering the systematics and examining the test, or shell, of this sea biscuit.
- Biogeography of the Western Sand Dollar (Dendraster excentricus) - Project by Karen Vitulano on this echinoid, including its description, natural history, reproduction, evolution and distribution.
- The Common Sand Dollar - Article by Cheryl Page on this species, Echinarachnius echinodermata parma, and echinodermata its life on the sea bed.
- The History of the Sand Dollar - Information on this urchin, and a poem called clypeasteroida “The legend of the sand dollar”.
- Sand Dollar - Information from Wikipedia on the classification and biology clypeasteroida of the sand dollar.
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