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Gilbertina spiralis
Taxonomy
Gilbertina spiralis was named by Ulrich (1904). It is not extant.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1904 | Gilbertina spiralis Ulrich |
| 1919 | Gilbertina spiralis Knowlton |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Gilbertina spiralis Ulrich 1904
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Diagnosis
No diagnoses are available