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Xerospirifer
Taxonomy
Xerospirifer was named by Havlicek (1978) [Sepkoski's age data: D Sieg Sepkoski's reference number: 538]. It is not extant.
It was assigned to Spiriferida by Sepkoski (2002); and to Acrospiriferinae by Williams et al. (2006).
It was assigned to Spiriferida by Sepkoski (2002); and to Acrospiriferinae by Williams et al. (2006).
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Xerospirifer Havlicek |
| 2002 | Xerospirifer Sepkoski |
| 2006 | Xerospirifer Williams et al. p. 1837 |
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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. †Xerospirifer Havlicek 1978
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Diagnosis
No diagnoses are available