Difference between revisions of "Accessory aperture"
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| + | [[Image:vvv|thumb|right|300px| <font size="2">'''Fig. 1.''' The aperture and the apertural face (coloured pink) in a biserial form - ''Textularia'' aff. ''goesi'' Cushman. SEM graphs of specimens from the Gulf of Aqaba, Red Sea. Recent. '''A-B''': Apertural (A) and peripheral (B) views of an intact specimen. Note the smooth surfaces characteristic of the faces of many agglutinated forms. '''a''': aperture; '''af''': apertural face; '''sut''': (chamber) suture (from [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Hottinger 2006] with permission from the author)]] | ||
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'''Accessory [[aperture]]''' (infralaminal aperture, auct.) - aperture that does not lead directly into the main chamber lumen, but extends beneath accessory structures (e.g. in bullae). | '''Accessory [[aperture]]''' (infralaminal aperture, auct.) - aperture that does not lead directly into the main chamber lumen, but extends beneath accessory structures (e.g. in bullae). | ||
