Difference between revisions of "Spine"

From Foraminifera
Jump to: navigation, search
(Created page with "__FORCETOC__ ==Definition== *''according to Hottinger (2006):'' '''SPINE''' [ACICULAR SPINE] – a calcite rod normal to the test surface, thin, round, triangular to trira...")
 
 
Line 2: Line 2:
 
==Definition==
 
==Definition==
 
*''according to Hottinger (2006):''
 
*''according to Hottinger (2006):''
'''SPINE''' [ACICULAR SPINE] – a calcite rod normal to the [[test]] surface, thin, round, triangular to triradiate in section, running through a hole in the [[outer lamella]] of planktic foraminifera. Arises apparently from the [[median layer]] of the [[chamber wall]]. At its base it is surrounded by a more or less conical mound, the [[spine base]]. Acicular spines are shed during the planktonic [[life cycle]], when descending in the water column prior to reproduction.
+
'''SPINE''' - (acicular spine); a calcite rod normal to the [[test]] surface, thin, round, triangular to triradiate in section, running through a hole in the [[outer lamella]] of planktic foraminifera. Arises apparently from the [[median layer]] of the [[chamber wall]]. At its base it is surrounded by a more or less conical mound, the [[spine base]]. Acicular spines are shed during the planktonic [[life cycle]], when descending in the water column prior to reproduction.
 +
 
 +
==See also==
 +
* [[chamber wall]]
 +
* [[life cycle]]
 +
* [[median layer]]
 +
* [[outer lamella]]
 +
* [[spine base]]
 +
* [[test]]
  
 
==References==
 
==References==
 
 
Hottinger (2006), [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Illustrated glossary of terms used in foraminiferal research]. [http://paleopolis.rediris.es/cg/uk-index.html Carnets de Géologie], [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Memoir 2], ISSN 1634-0744.
 
Hottinger (2006), [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Illustrated glossary of terms used in foraminiferal research]. [http://paleopolis.rediris.es/cg/uk-index.html Carnets de Géologie], [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Memoir 2], ISSN 1634-0744.
 
+
                                      | [[Foraminifera]]  |  [[EForams-LINKS|FORAM-Links]] | [[CONTRIBUTORS|Contributors]] |
                 
 
 
 
                    | [[Foraminifera]]  |  [[EForams-LINKS|FORAM-Links]] | [[CONTRIBUTORS|Contributors]] |
 

Latest revision as of 15:37, 9 May 2019

Definition

  • according to Hottinger (2006):

SPINE - (acicular spine); a calcite rod normal to the test surface, thin, round, triangular to triradiate in section, running through a hole in the outer lamella of planktic foraminifera. Arises apparently from the median layer of the chamber wall. At its base it is surrounded by a more or less conical mound, the spine base. Acicular spines are shed during the planktonic life cycle, when descending in the water column prior to reproduction.

See also

References

Hottinger (2006), Illustrated glossary of terms used in foraminiferal research. Carnets de Géologie, Memoir 2, ISSN 1634-0744.

                                      | Foraminifera  |  FORAM-Links | Contributors |