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

Uractinina

Asteroidea - Platyasterida

Synonymy list
YearName and author
1951Urasterina Spencer p. 122
1957Urasterina Lehmann p. 126
1965Urasterina Owen p. 564
1966Uractinina Spencer and Wright p. U71
1989Uractinida Blake p. 213
1993Uractinina Blake and Guensburg p. 110
2002Uractinida Sepkoski, Jr.
2007Uractinina Blake and Rozhnov p. 523

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumAsterozoa
classAsteroidea
orderPlatyasterida
suborderUractinina()
suborderUractinina()

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
W. K. Spencer 1951With inconspicuous mouth-angle plates