Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hansaster
Taxonomy
Hansaster was named by Gale (2018). Its type is Savignaster trimbachensis. It was considered monophyletic by Gale (2018).
It was assigned to Pterasteridae by Gale (2018).
It was assigned to Pterasteridae by Gale (2018).
Species
Synonymy list
Year | Name and author |
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2018 | Hansaster Gale p. 301 |
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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 | Pterasteridae in which the adambulacrals possess an elongated extension, and in which the base for the apertural spine is widely separated from those supporting the dambulacral spine membrane. The primary radials bear a proximally sloping face for spine articulation and a prominent proximal spur. |
Measurements
No measurements are available
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Source: f = family, o = order, c = class, p = phylum | |||||
References: Aberhan 1992, Aberhan et al. 2004, Blake 1990 |
Collections
No collection or age range data are available