| Globothalamea Temporal range:Devonian? - Recent | |
|---|---|
 | |
| Ammonia beccarii | |
Scientific classification | |
| Domain: | Eukaryota |
| Clade: | Sar |
| Clade: | Rhizaria |
| Phylum: | Retaria |
| Subphylum: | Foraminifera |
| Class: | Globothalamea Pawlowski, Holzmann, & Tyszka, 2013 |
| Orders | |
Globothalamea[1] comprises a class of multichamberedforaminifera based in part on SSU rDNA evidence;[2] the other isTubothalamea.
Six orders are included, which vary notably in composition, wall structure, and chamber arrangement. TheLituolida,Loftusiida, andTextulariida (as emended) have tests (shells) of agglutinated matter, glued together by various cements, but differ in chamber arrangement, wall structure, and complexity. In contrast theCarterinida,Robertinida andRotaliida, withbuliminids lumped into the Rotaliida, have calcareous tests. Those of rotaliid genera, which vary considerably, are of perforate hyaline (glassy)calcite. in contrast the Carterinida have tests composed of bundled calcite spicules. The Robertida differ in being composed, instead, of aragonite.[3]
SubclassTextulariia
Unassigned