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Pycinaster rosenkrantzii

Asteroidea - Valvatida - Pycinasteridae

Synonymy list
YearName and author
1943Pycinaster rosenkrantzii Brünnich-Nielsen p. 58 figs. pl. 4, fig. 6-9
1950Pycinaster rosenkrantzii Rasmussen figs. pl. 77-78, fig. 6f, pl. 10, fig. 11
1979Pycinaster rosenkrantzii Rasmussen p. 70
2000Pycinaster rosenkrantzii Jagt p. 434 figs. pl. 23, fig. 1-2

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumAsterozoa
classAsteroidea
RankNameAuthor
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderValvatacea
orderValvatida
familyPycinasteridae()
genusPycinaster
speciesrosenkrantzii

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
H. W. Rasmussen 1950An asteroid whose interradial marginals have been tall, evenly tumid, more or less wedge-shaped and abactinally swollen. The marginals of the arm have been distinctly lower, evenly tumid and not wedge-shaped. The outer surface of the marginals has been covered by closely placed spine-pits. There is often also a larger facet for the attachment of a spine at the junction between the lateral and abactinal parts of the outer surface. The surface directed towards the body cavity is evenly curved and without irregularities.