Difference between revisions of "SHELL"

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!align="left" colspan="1"| [[Image:Bulbobaculites.jpg|thumb|right|122px|]]
 
!align="left" colspan="1"| [[Image:Bulbobaculites.jpg|thumb|right|122px|]]
  
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Most foraminifers construct tests (shells) covering the cell body. Composition of tests varies from organic, through agglutinated (cemented foreign grains) calcareous secreted from calcium carbonate. Foraminiferal morphologies are extremely diverse, from [[unilocular|single-chambered]], through simple multi-chambered, to more sophisticated complex forms.
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Most foraminifers construct tests (shells) covering the cell body. Composition of tests varies from organic, through agglutinated (cemented foreign grains) to calcareous secreted from calcium carbonate.  
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The size of the test is associated with the amount of the cytoplasm. "Feeding adds to the bulk of the cytoplasm" (Armstrong & Brasier 2005), therefore, the test has to enlarge. Foraminifera have developed several strategies for test enlargement during ontogeny:
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- [[unilocular]] (single-chambered) forms
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- bilocular
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- simple multilocular (multi-chambered)
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- complex multilocular forms  
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There are several Morphologies of foraminiferal tests are extremely diverse including
  
 
*[[Function of the test]]
 
*[[Function of the test]]

Revision as of 19:58, 18 June 2006