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・ Spiridon Kacarosi
・ Spiridon Mattar
・ Spiridon Peninsula
・ Spiridon Popescu
・ Spiridon Sobol
・ Spiridon Stais
・ Spiridon Zhevakhov
・ Spiridone Roma
・ Spiridonov
・ Spiriduș
・ Spirifer
・ Spiriferida
・ Spiriferina
・ Spirigera concentrica
・ Spirillaceae
Spirillinata
・ Spirillinida
・ Spirillum
・ Spirillum minus
・ Spirillum volutans
・ Spirillum winogradskyi
・ Spirinchus
・ Spiringen
・ Spiripockia
・ Spiris
・ Spiris bipunctata
・ Spiris slovenica
・ Spiris striata
・ Spirit
・ Spirit (2012 film)


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Spirillinata : ウィキペディア英語版
Spirillinata

Spirillinata is a class of Foraminifera established by Maslakova,1990, for spirally wound forms,〔(Morphological classification of Foraminifera-Spirilinata )〕 where Foraminifera are regarded as a phylum. Two subclasses are included, the agglutinated Ammodiscana and the calcareous Spirillinana.
Tests of the Spirillinata consist typically of a proloculus followed by an undivided planospirally or trochospirally wound tubular chamber such that the test is either planar or conical. Some however are pseudochambered as the result of constrictions of the test wall or by short septula (incomplete septa). The two orders are distinguished by their composition. The Ammodiscana are composed of fine agglutinated matter. The Spirillinana, in the original sense, are composed of an optically single crystal of calcite. Genera added from the Involutinida are of aragonite.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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