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Chariaster

Asteroidea - Valvatida - Ophidiasteridae

Taxonomy
Chariaster was named by de Loriol (1909) [Sepkoski's age data: K Sant]. It is not extant.

It was assigned to Ophidiasteridae by de Loriol (1909) and Spencer and Wright (1966); and to Valvatida by Sepkoski (2002).

Synonymy list
YearName and author
1909Chariaster de Loriol
1966Chariaster Spencer and Wright p. U64
2002Chariaster Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumAsterozoa
RankNameAuthor
classAsteroidea
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderValvatacea
orderValvatida
familyOphidiasteridae
genusChariaster

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 1966Disk small. Arms long and slender arms, wider at base. Rounded arm tip. Marginals alternate in two prominent rows. Superomarginal plates generally with a large tubercle. Aboral surface flat but with median row formed by swollen intersection of long abactinal plates, most with a short rounded spine. Ornament of dense granules. Large papular area. Adambulacrals with one subambulacral spine.