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Exostega
Taxonomy
Exostega was named by Rafinesque and Clifford (1820) [Sepkoski's age data: D]. It is not extant.
It was assigned to Rugosa by Sepkoski (2002).
It was assigned to Rugosa by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1820 | Exostega Rafinesque and Clifford |
| 2002 | Exostega Sepkoski |
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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. †Exostega Rafinesque and Clifford 1820
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Diagnosis
No diagnoses are available