| Basic info | Taxonomic history | Classification | Relationships |
| Morphology | Ecology and taphonomy | Age range and collections |
Rhopalastrum
Radiolaria - Spumellaria - Spongodiscidae
Taxonomy
Rhopalastrum was named by Ehrenberg (1847) [Sepkoski's age data: J u R]. It is extant.
It was assigned to Spongodiscidae by De Wever et al. (2001); and to Spumellaria by Sepkoski (2002).
It was assigned to Spongodiscidae by De Wever et al. (2001); and to Spumellaria by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Rhopalastrum Ehrenberg |
| 2001 | Rhopalastrum De Wever et al. p. 158 |
| 2002 | Rhopalastrum Sepkoski, Jr. |
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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