View source for Selliform

[[Image:Fig_76.jpg|thumb|right|300px| <font size="2">'''Fig. 1.'''  '''A:''' selliform deformation of the lenticular-compressed test of ''Eulepidina'' sp., Oligocene, Sarawak, Borneo. Transverse section approximately perpendicular to the axis of the shell. Transmitted light micrograph. '''B:''' sketch of a selliform shell with its axis. Schema, not to scale.

(Hottinger, 2006; fig. 76 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]
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==Definition==
*''according to Hottinger (2006):''

'''SELLIFORM''' is the deformation of a discoidal shell into a shape like a horse's saddel. Common in advanced ''Discocyclina'' (''"D. sella"'') but also to be observed in ''Orbitoides'', ''Somalina'' or ''Eulepidina''. Selliform orbitoidal shells produce characteristic sections (Fig. 1). Whether this deformation is a specific taxonomic character or a functional response to bottom currents remains an open question.
 

==See also==
* [[orbitoid architecture]]
* [[test]]

==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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