View source for Foramenal plate

[[File:Fig 34.jpg|thumb|<font size="2">'''Fig. 1.'''  Cover plate and foramenal plate in ''Challengerella bradyi'' Billman et alii from the Gulf of Aqaba. Recent. SEM graphs. '''A-B:''' dissected specimens in oblique ventral view. '''C:''' young specimen, ventral view. Note incipient umbilical pile against which the foliar walls are beginning to fuse, covering the spiral interlocular space. '''D:''' dorsal (spiral) view of adult megalospheric specimen. '''E:''' Detail showing foraminal and cover-plates. Colours corresponding to those used in the models. White arrow: loop-hole. '''F:''' general model showing position of plates and communications. Note position of loop-hole (red arrow). '''G:''' Detail of umbilical structures in last three chambers. Note the separation of streaming chamber plasm through successive foramina (blue arrow) and circulation in the umbilical interlocular space (black arrow) by the umbilical structures. Models schematic, not to scale, after Hottinger, 2000.
'''a:''' [[aperture]]; '''cp:''' cover plate; '''csut:''' chamber (septal) suture; '''f:''' [[foramen]]; '''fo:''' [[folium]]; '''foa:''' [[foliar aperture]]; '''fp:''' [[foramenal plate]]; '''isp:''' interlocular (intrasepal) space; '''lh:''' [[loop-hole]]; '''n:''' [[notch]]; '''pil:''' umbilical plug; '''s:''' [[septum]]; '''sf:''' [[septal flap]]; '''suc:''' spiral umbilical interlocular space, transformed into spiral canal when covered by foliar extensions; '''u:''' [[umbilicus]]; '''ulch:''' [[ultimate chamber]]; '''vc:''' [[funnel]] (vertical canal); '''wsut:''' [[whorl]] (spiral) suture; (Hottinger, 2006; fig. 34 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]
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==Definition==
*''according to Hottinger (2006):''
'''FORAMENAL PLATE''' - (toothplate; paries proximus, pars auct.); basically a primary infold or "inpush" in the direction of growth of the posterio-lateral chamber wall at a sutural [[notch]], and attached to a single intercameral foramen. A foramenal plate is a detached continuation of a septal flap that may or may not be connected with a [[cover plate]] in the previous chamber. A foramenal plate separates to some degree the main chamber lumen from the lumen of the foliar chamberlet and the chamber plasm from the ectoplasm in the interlocular spaces. 





==See also==
* [[bipartitor]]
* [[cover plate]]
* [[notch]]
* [[umbilical plate]]

==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 (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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