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Chinianaster

Somasteroidea - Chinianasteridae

Taxonomy
Chinianaster was named by Thoral (1935) [Sepkoski's age data: O Aren-l Sepkoski's reference number: 805]. 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), Dean Shackleton (2005) and Blake and Guensburg (2015); and to Somasteroidea by Blake (2013) and Blake (2018).

Species

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
2005Chinianaster Dean Shackleton p. 68
2013Chinianaster Blake p. 363
2015Chinianaster Blake and Guensburg p. 467
2018Chinianaster Blake p. 21

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumEleutherozoa
Asterozoa()
classSomasteroidea()
familyChinianasteridae
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.

G. †Chinianaster Thoral 1935
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Chinianaster levyi Thoral 1935
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.