Attics

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Fig. 1. Attics and floors in Alveolinella borneensis Tan Sin Hok, Molukkas, Miocene. Transmitted light micrographs. A: Transverse section. Position in respect to B: double arrow A. B: axial section. at: attics; cl: chamberlet; f1: foramen (basal row): f2: foramen (second row); f3: supplementary foramina corresponding to the attics; flo: floors; s: septum; (Hottinger, 2006; fig. 14 [1] CC/BY-NC-SA)

Definition

  • according to Hottinger (2006):

ATTICS - in porcelaneous shells the outermost lateral or abaxial layer of chamberlets in a multi-layered endoskeleton, distinguished from less lateral or adaxial ones by the comparatively small caliber of the tubiform chamberlets, as in Alveolinella.


References

Hottinger (2006), Illustrated glossary of terms used in foraminiferal research. Carnets de Géologie, Memoir 2, ISSN 1634-0744

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