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单词 Orbitoidacea
释义 Orbitoidacea
[´ȯr·bǝ·tȯi`dās·ē´ǝ]
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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