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

Nymphaster

Asteroidea - Valvatida - Goniasteridae

Synonymy list
YearName and author
1889Nymphaster Sladen
1966Nymphaster Spencer and Wright p. U62
1992Nymphaster Clark and Downey pp. 253-254
2002Nymphaster Sepkoski, Jr.
2009Nymphaster Blake and Ettensohn p. 568

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

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumAsterozoa
RankNameAuthor
classAsteroidea
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderValvatacea
orderValvatida
familyGoniasteridae
genusNymphaster

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. M. Clark and M.E. Downey 1992A genus of Goniasteridae with form flat stellate, arm log, narrow; abactinal plates low tabulate, completely covered with granules; superomarginal plate in contact medially throughout length of arm; adambulacral furrow margin strongly angular.