View source for Orbitolitid structure

[[File:Fig.47H.png|thumb|<font size="2">'''Fig. 1.'''  Endoskeletal patterns in discoidal shells (after Hottinger, 1967) '''H1-2:''' ''Orbitolites spp.'' from the region of Tremp, Lerida prov., Northern Spain. Pyrenean Lower Eocene (Ilerdian). '''H1:''' the comparatively regular disposition of the ramps in sections parallel to the equatorial plane reveals their superposition in consecutive stolon planes. '''H2:''' in the transverse section parallel to the axis of the shell this superposition is clearly visible where the section is tangential to an annular septum.
Abbreviations:'''f:''' foramen; '''ra:''' ramp; '''s:''' septum; '''sl:''' septulum; (Hottinger, 2006; fig. 47 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]

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==Definition==

*''according to Hottinger (2006):''

'''ORBITOLITID STRUCTURE''' - an arrangement of endoskeletal elements as in ''Orbitolites'': apertural axes oblique in respect to the radial direction in the discoidal shell, overcrossing and superposed in radial positions in neighbouring [[stolon plane]]s. So far, only septular (i.e. continuous) endoskeletal elements are known to follow the orbitolitid pattern of stolon axes. [[Orbitolinid structure]] is basically the same as orbitolitid structure, but it produces radial subdivisions within a discoidal [[chamber]] whereas the orbitolitid structure produces subdivsions of an annular chamber.

==See also==
*[[endoskeleton]]
*[[stolon axis]] 

==References==
Hottinger (1967), Foraminifères imperforés du Mésozoïque marocain, Notes et Mémoires du Service géologique, Rabat, N° 209, p. 5-168

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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