Foraminifera.eu Key to Benthic Species        includes so far 1306 species
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Overall    
Wall
material
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Chamber
Arrangement
   
Chamber Form
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Position
of the primary
aperture
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Aperture
Form

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1 1 1
Sutures,
Keel
1 1 1    
Orna-
mentation
1 1    

The drawings are from Rönnfeld, 2011                              The drawings are from Rönnfeld, 2008