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Arisaigaster

Asteroidea - Pustulosida

Taxonomy
Arisaigaster was named by Spencer and Wright (1966) [Sepkoski's age data: O Ashg S Ludl Sepkoski's reference number: 2]. It is not extant. Its type is Mesopalaeaster leintwardensis.

It was assigned to Mesopalaeasterinae by Spencer and Wright (1966); and to Pustulosida by Sepkoski (2002).

Synonymy list
YearName and author
1966Arisaigaster Spencer and Wright p. U51
2002Arisaigaster Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
RankNameAuthor
subphylumAsterozoa
classAsteroidea
orderPustulosida()
subfamilyMesopalaeasterinae
genusArisaigaster

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 and C.W. Wright 1966Disc large; arms short and broad