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Cladaster
Taxonomy
Cladaster was named by Verrill (1899). It is extant.
It was assigned to Goniasteridae by Verrill (1899), Clark and Downey (1992).
It was assigned to Goniasteridae by Verrill (1899), Clark and Downey (1992).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1899 | Cladaster Verrill |
| 1992 | Cladaster Clark and Downey p. 238 |
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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. M. Clark and M.E. Downey 1992 | A genus of Goniasteridae with form stellate, arms merging into disc; abactinal and marginal plates with large, spaced granules; no secondary abactinal plates; 2-3 adambulacral furrow spines; all adambulacral spines massive; furrow margin straight (without apophyses). |