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Thuyaster
Taxonomy
Thuyaster was named by Gale (2018). It is not extant. Its type is Thuyaster fontenoillensis. It was considered monophyletic by Gale (2018).
It was assigned to Korethrasteridae by Gale (2018).
It was assigned to Korethrasteridae by Gale (2018).
Species
T. fontenoillensis (type species)
Synonymy list
Year | Name and author |
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2018 | Thuyaster Gale p. 295 |
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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 | |
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A.S. Gale 2018 | Korethrasterid in which the arms are narrow, and the actinal surface is constructed from crescentic adambulacrals, which possess a short, arrowhead-shaped adambulacral extension bearing two spine attachment sites. The abactinal ossicles are oval to trapezoidal in outline and possess a central region constructed of coarsely perforate stereom and a margin of finer stereom. |
Measurements
No measurements are available
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Source: o = order, c = class, p = phylum | |||||
References: Blake 1990, Aberhan et al. 2004, Aberhan 1992 |
Collections
No collection or age range data are available