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Globothalamea : ウィキペディア英語版 | Globothalamea
Globothalamea〔(World Foraminifera Database, Foraminifera )〕 comprises a class of multichambered foraminifera based in part on SSU rDNA evidence,〔(New Supraordinal Classification of Foraminifera )〕 The other being the Tubothalamea. Six orders are included, which vary notably in composition, wall structure, and chamber arrangement. The Lituolida, Loftusiida, and Textulariida (as emended) have tests (shells) of agglutinated matter, glued together by various cements, but differ in chamber arrangement, wall structure, and complexity. In contrast the Carterinida, Robertinida and Rotaliida, with buliminids lumped into the Rotaliida, have calcareous tests. Those of rotaliid genera, which vary considerably, are of perforate hyaline (glassy ) calcite. in contrast the Carterinida, represented by ''Carterina'' have tests composed of bundled calcite spicules. The Robertida differ in being composed, instead, of aragonite.〔( Foraminifera genera and their description ) A.R. Loeblich jr & H. Tappan, 1988. e-book.〕 ==References==
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