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Orde Overzicht for Clypeasteroida
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Main Ref.
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Orde
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Clypeasteroida sand dollars
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Klasse
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Echinoidea
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Sister Order
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M years
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Ref.
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First Fossil Record
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Occurs in
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Marien
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Fresh
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Brakwater
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Opmerking
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:
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Klasse etymology
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Orde etymology
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:
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Families
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:
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