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Protremaster

Asteroidea - Valvatida - Asterinidae

Taxonomy
Protremaster was named by Smith and Tranter (1985) [Sepkoski's age data: J Sine]. It is not extant. Its type is Protremaster universalis. It was considered monophyletic by Smith and Tranter (1985).

It was assigned to Tremasterinae by Smith and Tranter (1985); to Valvatida by Sepkoski (2002); and to Korethrasteridae by Gale (2011).

Synonymy list
YearName and author
1985Protremaster Smith and Tranter p. 351
2002Protremaster Sepkoski, Jr.
2011Protremaster Gale p. 62

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumAsterozoa
classAsteroidea
RankNameAuthor
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderValvatacea
orderValvatida
familyAsterinidae
subfamilyTremasterinae
genusProtremaster

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
A. B. Smith and T.H. Tranter 1985A genus of Tremasterinae with only a single serie of actinal plates separating the inframarginals and the adambulacrals