Foraminifera

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Some classifiers have given them higher taxonomic rank, as high as phylum, which results in crowding of kingdom level taxa, and have substituted the Retaria for the Granuloreticulosa. Ranking foraminifera lower than order results in generic crowding and the need for extra subgenera and subspecies.
Some classifiers have given them higher taxonomic rank, as high as phylum, which results in crowding of kingdom level taxa, and have substituted the Retaria for the Granuloreticulosa. Ranking foraminifera lower than order results in generic crowding and the need for extra subgenera and subspecies.
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====Foramifera Biology====
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====Foraminifera Biology====
The living organism, loosely referred to as an animal, is unicellular or acellular, but not in the real sense of the word,  primitive.  Complex body functions performed by differentiated tissue and distinct organs in Metazoa are performed within the cell itself. As with Amoebida, the protoplasm in Foraminiferida is divided into an inner layer of darkish endoplasm surrounded by an outer layer of lighter ectoplasm. Pseudopoda, which are formed from ectoplasm, are anastomosing - branching and recombining.  Endoplasm is confined to already constructed chambers, which are formed from ectoplasm and pseudopoda, and may be colored in shades of yellow, yellowish brown, greenish brown, salmon-rose, orange-red, or crimson.   
The living organism, loosely referred to as an animal, is unicellular or acellular, but not in the real sense of the word,  primitive.  Complex body functions performed by differentiated tissue and distinct organs in Metazoa are performed within the cell itself. As with Amoebida, the protoplasm in Foraminiferida is divided into an inner layer of darkish endoplasm surrounded by an outer layer of lighter ectoplasm. Pseudopoda, which are formed from ectoplasm, are anastomosing - branching and recombining.  Endoplasm is confined to already constructed chambers, which are formed from ectoplasm and pseudopoda, and may be colored in shades of yellow, yellowish brown, greenish brown, salmon-rose, orange-red, or crimson.   
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:[[Robertinina]] <br>   
:[[Robertinina]] <br>   
:[[Lagenina]]  <br>   
:[[Lagenina]]  <br>   
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:[[Rotaliida]] <br>     
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:[[Rotaliina]] <br>     
:[[Silicoloculinina]] <br>  
:[[Silicoloculinina]] <br>  
:[[Globigerinina]]  <br>
:[[Globigerinina]]  <br>
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:[[Spirilinina]]  
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:[[Spirillinina]]  
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The Carterinina, Robertinina, Lagenina, Globigerinina, and Spirilinina were removed form the Rotaliina in the Treatise on Invertebrate Paleontology Part C (Loeblich and Tappan 1964) where they were ranked as superfamilies; the Involutinina separated from the Cassidulinacea, the Silicoloculinina from the Litualacea (same).  
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The Carterinina, Robertinina, Lagenina, Globigerinina, and Spirillinina were removed form the Rotaliina in the Treatise on Invertebrate Paleontology Part C (Loeblich and Tappan 1964) where they were ranked as superfamilies; the Involutinina separated from the Cassidulinacea, the Silicoloculinina from the Litualacea (same).  
See also [[Foraminifera dendrograms]]
See also [[Foraminifera dendrograms]]

Revision as of 13:42, 7 April 2011

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