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Sphaeriaster

Asteroidea - Valvatida - Poraniidae

Taxonomy
Sphaeriaster was named by Dons (1939) [Sepkoski's age data: J Bajo-u J Tith Sepkoski's reference number: 1066]. It is extant.

It was assigned to Valvatida by Sepkoski (2002); and to Poraniidae by Dons (1939), Hess (1972) and Gale (2011).

Synonymy list
YearName and author
1939Sphaeriaster Dons p. 37
1972Sphaeriaster Hess p. 26
2002Sphaeriaster Sepkoski, Jr.
2011Sphaeriaster Gale p. 62

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumAsterozoa
RankNameAuthor
classAsteroidea
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderValvatacea
orderValvatida
familyPoraniidae
genusSphaeriaster

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
No diagnoses are available