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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Rugosphaeraster
Taxonomy
Rugosphaeraster was named by Gale (2021). It is not extant. Its type is Rugosphaeraster ruegensis.
It was assigned to Sphaerasteridae by Gale (2021).
It was assigned to Sphaerasteridae by Gale (2021).
Species
R. ruegensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2021 | Rugosphaeraster Gale pp. 736-739 |
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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
| Reference | Diagnosis | |
|---|---|---|
| A.S. Gale 2021 | Robust abactinal ossicles block-like, irregularly polygonal to rhombic, mostly equidimensional, with notches for papulae at the corners. Surface of the abactinal ossicles bearing transverse strips or irregularly radial pustules of imperforate stereom. Adambulacrals bear large, irregularly arranged, bifid spine bases. |