Orbitoidacea

Orbitoidacea

[‚ȯr·bə·tȯi′dās·ē‚ə]
(invertebrate zoology)
A superfamily of foraminiferan protozoans in the suborder Rotaliina characterized by a low trochospire or a planispiral, uncoiled or branching test composed of radial calcite with bilamellar septa.
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