Rotaliana is a subclass of benthic Foraminifera with multichambered tests of perforate hyaline calcite. Tests may be planospiral, low or high trochospiral, or serial. Interiors may be complex with secondary chambers and interconnecting canal systems. Rotaliana are separate from the planktonic Globigerinana although both have tests of similar composition. The Textulariana, which contains forms that are rather similar, differs in be agglutinated.
| Rotaliana | |
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| Ammonia beccarii (Rotaliidae) | |
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| Subclass: | Rotaliana Mikhalevich, 1980
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Sixteen orders are included (Mikhalevich, 1980) among which are the Asterigerinida, Bolivinitida, Discorbida, and Rotaliida. Loeblich and Tappan (1988), with Foraminifera an order, lists 24 superfamilies within the suborder Rotaliina, which are equivalent to or contained within the orders of the Rotaliina Mikhalevich.
References edit
This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (December 2014) |
- Subclass: Rotaliana Mikhalevich,1980
- Alfred R Loeblich Jr and Helen Tappan, 1988