Difference between revisions of "Carina"
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| + | __FORCETOC__ | ||
| + | [[File:Fig 29.jpg|thumb|<font size="2">'''Fig.1.'''Carina ([[keel]]). | ||
| + | '''A-B''': ''Spiroplectammina cf. taiwanica'' (Chang), apertural view and side view. | ||
| + | '''C-E''': ''Paracibicides edomica'' Perelis et Reiss, dorsal (spiral) view, peripheral view and detail of perforation pattern along the peripheral carina on the dorsal surface. Note the interiomarginal, extraumbilical - equatorial position of aperture. All specimens from the Gulf of Aqaba. Recent. SEM graphs. | ||
| + | '''a''': [[aperture]]; '''k''': carina ([[keel]]); '''p''': [[pore]]; (Hottinger, 2006; fig. 29 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] with permission from the author)]] | ||
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==Definition== | ==Definition== | ||
| − | a peripheral thickening of the shell. May be doubled in Cretaceous planktic foraminifera. | + | *''according to Hottinger (2006):'' |
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| + | '''CARINA''' - (=[[keel]]) is a peripheral thickening of the shell. May be doubled in Cretaceous planktic foraminifera. | ||
In bilamellar foraminifera formed exclusively by the outer lamella and therefore imperforate. | In bilamellar foraminifera formed exclusively by the outer lamella and therefore imperforate. | ||
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* [[keel]] | * [[keel]] | ||
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| + | ==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. | ||
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| − | + | | [[Foraminifera]] | [[EForams-LINKS|FORAM-Links]] | [[CONTRIBUTORS|Contributors]] | | |
