Difference between revisions of "Biserial"

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[[File:Fig 37.gif|thumb|<font size="2">'''Fig. 1.''' Chamber arrangement and apertural face. Schematic, not to scale. In part after Hottinger, 2000. '''1:''' planispiral-spiroliniform. '''2:''' planispiral-evolute and flaring, peneropliform. '''3:''' planispiral-evolute, approaching reniform, '''4:''' annular-concentric, with thickened and folded margins, as in ''Marginopora vertebralis''. '''5:''' planispiral-involute, as in ''Archaias''. '''6:''' biserial – textulariid. '''7:''' biserial-cuneiform. '''8:''' uniserial-conical. '''9:''' uniserial-conical with marginal apertures. '''10:''' streptospiral-involute as in ''Pseudonummuloculina''. Coiling axis rotating with each chamber. '''11:''' streptospiral with planispiral-involute adult stage, as in ''Helenalveolina''. '''12:''' planispiral involute. Coiling axis fixed throughout ontogeny. '''13:''' planispiral-fusiform: '''A:''' axial section, '''E:''' equatorial section. Black arrow: direction of growth; white arrow: direction of movement. '''14:''' miliolid (-quinquelocular, -trilocular), with fixed apertural axis and with coiling axis rotating in perpendicular position in respect to apertural axis. '''15:''' miliolid-bilocular with fixed apertural and coiling axes. '''16:''' unilocular-concentric, with discoidal trematophore, as in ''Lacazina elongata''. '''17:''' unilocular-concentric with annular trematophore, as in ''Lacazina compressa''. '''18:''' low-trochospiral, as in ''Rotorbinella''. '''19:''' high-trochospiral, as in ''Sakesaria''.
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[[File:Fig.37.6-7.png|thumb|<font size="2">'''Fig. 1.''' Chamber arrangement and apertural face. Schematic, not to scale. In part after Hottinger, 2000. '''A:''' biserial-cuneiform; '''B:''' biserial – textulariid; (Hottinger, 2006; fig. 37.6-7 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]
'''a:''' aperture; '''af:''' apertural face; '''apax:''' apertural axis; '''col:''' columella; '''fol:''' folium; '''ma:''' marginal aperture; '''n:''' notch; '''per:''' periphery; '''potort:''' polar totion; '''pst:''' peristome; '''spax:''' coiling axis; (Hottinger, 2006; fig. 37.6-7 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]
 
 
__FORCETOC__
 
__FORCETOC__
 
==Definition==
 
==Definition==
 
*''according to Hottinger (2006):''
 
*''according to Hottinger (2006):''
 
'''BISERIAL'''  - trochospiral chamber arrangement with about 180° between consecutive chambers, thus producing two rows of chambers. See [[serial disposition of chambers]].
 
'''BISERIAL'''  - trochospiral chamber arrangement with about 180° between consecutive chambers, thus producing two rows of chambers. See [[serial disposition of chambers]].
 
 
 
 
  
  
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==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             
                               
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Hottinger (2000), Functional morphology of benthic foraminiferal shells, envelopes of cells beyond measure. In: Lee J.J. & Hallock P. (eds.), Advances in biology of Foraminifera.- Micropaleontology, New York, vol. 46, suppl. 1, p. 57-86.   
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                           | [[Foraminifera]]  |  [[EForams-LINKS|FORAM-Links]] | [[CONTRIBUTORS|Contributors]] |
 
                           | [[Foraminifera]]  |  [[EForams-LINKS|FORAM-Links]] | [[CONTRIBUTORS|Contributors]] |
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Latest revision as of 09:52, 15 April 2019

Fig. 1. Chamber arrangement and apertural face. Schematic, not to scale. In part after Hottinger, 2000. A: biserial-cuneiform; B: biserial – textulariid; (Hottinger, 2006; fig. 37.6-7 [1] CC/BY-NC-SA)

Definition

  • according to Hottinger (2006):

BISERIAL - trochospiral chamber arrangement with about 180° between consecutive chambers, thus producing two rows of chambers. See serial disposition of chambers.





References

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

Hottinger (2000), Functional morphology of benthic foraminiferal shells, envelopes of cells beyond measure. In: Lee J.J. & Hallock P. (eds.), Advances in biology of Foraminifera.- Micropaleontology, New York, vol. 46, suppl. 1, p. 57-86.

                         | Foraminifera  |  FORAM-Links | Contributors |



A. Simulation of the biserial shell with 12 chambers: side view
B. Simulation of the biserial shell: virtual axial section of the shell from Fig. A
C. Simulation of the biserial shell: virtual thin-section of the shell from Figs A, B