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English
Noun
orbitoid (plural orbitoids)
- Any foraminifer of the family Orbitoididae.
1918, Joseph Augustine Cushman, “Orbitoid Foraminifera of the genus Orthophragmina from Georgia and Florida”, in David White, editor, Shorter Contributions to General Geology, 1917, page 115:The larger orbitoid Foraminifera of the Western Hemisphere are very inadequately known, yet their occurrence in great numbers has been noted in many papers during the last three- quarters of a century.
1983, Ulrich Lehmann, Fossil Invertebrates, page 30:The orbitoids are larger foraminifera. Their tests are radial hyaline and perforate with a discoidal growth pattern, i.e. the chambers are arranged in rings.
Derived terms