Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy   Age range and collections

Chinianaster

Somasteroidea -

Taxonomy
Chinianaster was named by Thoral (1935) [Sepkoski's age data: O Aren-l Sepkoski's reference number: 805]. It is not extant. Its type is Chinianaster levyi. It is the type genus of Chinianasteridae. It was considered monophyletic by Dean Shackleton (2005).

It was assigned to Goniactinida by Sepkoski (2002); to Chinianasteridae by Spencer (1951), Owen (1965), Spencer and Wright (1966) and Dean Shackleton (2005); and to Somasteroidea by Blake (2013).

Synonymy list
YearName and author
1935Chinianaster Thoral p. 127
1951Chinianaster Spencer p. 98
1965Chinianaster Owen p. 543
1966Chinianaster Spencer and Wright p. U39
2002Chinianaster Sepkoski, Jr.
2005Chinianaster Dean Shackleton p. 68
2013Chinianaster Blake p. 363

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
RankNameAuthor
phylumEchinodermata
subphylumAsterozoa
classSomasteroidea()
genusChinianaster

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
ReferenceDiagnosis
W. K. Spencer 1951A chinianasterid with large ambulacral basins placed on the oral surface and separated by mid-radial open channel
J. Dean Shackleton 2005Ambulacral proximal podial flange with tongue overlapping distal flange; transverse contact between adjacent ambulacrals overlapping; pores present within large ambulacral groove; ambulacral cross-section rectangular (flat aboral ambulacral profile); greater than two inferomarginal ossicles per ambulacral over entire arm.