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Xestotrema
Taxonomy
Xestotrema was named by Cooper and Grant (1969) [Sepkoski's age data: P Guad-l P Guad-u Sepkoski's reference number: 1066].
It was assigned to Spiriferida by Sepkoski (2002); and to Punctospirellinae by Williams et al. (2006).
It was assigned to Spiriferida by Sepkoski (2002); and to Punctospirellinae by Williams et al. (2006).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1969 | Xestotrema Cooper and Grant p. 16 |
| 2002 | Mucrospiriferinella Sepkoski |
| 2002 | Xestotrema Sepkoski |
| 2006 | Xestotrema Williams et al. p. 1925 |
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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.
G. †Xestotrema Cooper and Grant 1969
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†Xestotrema pulchrum Meek 1860
Invalid names: Mucrospiriferinella [synonym]
Diagnosis
No diagnoses are available