Atelostomata
From Infogalactic: the planetary knowledge core
| Atelostomata |
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| Echinocardium cordatum | |
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Atelostomata
von Zittel, 1879
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| Orders | |
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The Atelostomata are a superorder of sea urchins. They are distinguished from other sea urchins by their irregular shape and the absence of a feeding lantern. The group includes the well known heart urchins, as well as some less familiar and extinct forms.
List of orders
- order Holasteroida (Durham & Melville, 1957)
- order Spatangoida (L. Agassiz, 1840)
References
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