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Pycnodesma
Taxonomy
Pycnodesma was named by Schrammen (1910) [Sepkoski's age data: K u]. It is not extant. Its type is Pycnodesma globosa.
It was assigned to Lithistida by Sepkoski (2002); and to Plinthosellidae by Finks et al. (2004).
It was assigned to Lithistida by Sepkoski (2002); and to Plinthosellidae by Finks et al. (2004).
Species
P. globosa (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1910 | Pycnodesma Schrammen |
| 2002 | Pycnodesma Sepkoski |
| 2004 | Pycnodesma Finks et al. |
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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.
Diagnosis
No diagnoses are available