"Rotaliida"@en . . . . "greenyellow"@en . "The Rotallida are an order in the kingdom Protista, phylum, subphylum or class Foraminifera, characterized by multilocular tests (shells) composed of bilammelar perforate hyaline lamellar calcite that may be optically radial or granular. Where the Foraminifera comprise a phylum, the class Rotalidia is equivalent to the order.In form, rotaliid tests are typically enrolled, but maybe reduced to biserial or uniserial, or may be encrusting with proliferated chambers."@en . .