Difference between revisions of "Mask"

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[[File:Fig.77A-C.png|thumb|<font size="2">'''Fig. 1.''' Umbos and umbilical plugs.
 
[[File:Fig.77A-C.png|thumb|<font size="2">'''Fig. 1.''' Umbos and umbilical plugs.
'''A-C:''' ''Elphidium craticulatum'' (Fichtel et Moll) from the Gulf of Aqaba, Red Sea. Recent. A: lateral view, SEM graph. B: peripheral view, SEM graph. C: slightly oblique axial section cutting through the symmetrical pair of umbilical plugs. Note the presence of spaces in the biumbilical shell, caused by spiral canals and funnels. Transmitted light micrograph; '''af:''' apertural face; fo: fossette; fu: funnel; m: mask; rp: retral process; s: septum; spc: spiral canal; upl: umbilical plug; (Hottinger, 2006; fig. 61)[http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]
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'''A-C:''' ''Elphidium craticulatum'' (Fichtel et Moll) from the Gulf of Aqaba, Red Sea. Recent. '''A:''' lateral view, SEM graph. '''B:''' peripheral view, SEM graph. '''C:''' slightly oblique axial section cutting through the symmetrical pair of umbilical plugs. Note the presence of spaces in the biumbilical shell, caused by spiral canals and funnels. Transmitted light micrograph; '''af:''' [[apertural face]]; '''fo:''' [[fossette]]; '''fu:''' [[funnel]]; '''m:''' mask; '''rp:''' [[retral process]]; '''s:''' [[septum]]; '''spc:''' [[spiral canal]]; '''upl:''' umbilical plug; (Hottinger, 2006; fig. 61)[http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]
  
 
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Revision as of 14:08, 17 April 2019

Fig. 1. Umbos and umbilical plugs. A-C: Elphidium craticulatum (Fichtel et Moll) from the Gulf of Aqaba, Red Sea. Recent. A: lateral view, SEM graph. B: peripheral view, SEM graph. C: slightly oblique axial section cutting through the symmetrical pair of umbilical plugs. Note the presence of spaces in the biumbilical shell, caused by spiral canals and funnels. Transmitted light micrograph; af: apertural face; fo: fossette; fu: funnel; m: mask; rp: retral process; s: septum; spc: spiral canal; upl: umbilical plug; (Hottinger, 2006; fig. 61)[1] CC/BY-NC-SA)


Definition

  • according to Hottinger (2006):

MASK - mineralized element(s) of the test that obstruct a primary cameral aperture; resorbed in subsequent growth stages.





References

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

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