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Metopaster parkinsoni rioulti

Asteroidea - Valvatida - Goniasteridae

Taxonomy
Metopaster parkinsoni rioulti was named by Breton (1978). It is not extant. Its type specimen is Museum of Rouen, holotype Bucaille 00973, patarypes bucaille 00974, 00975, a partial skeleton.

Sister species lacking formal opinion data
M. tennesseensis

Synonymy list
YearName and author
1978Metopaster parkinsoni rioulti Breton pp. 22-24 figs. fig. 13, pl. 2 fig. 5-9, pl. 3 fig. 10-1
1992Metopaster parkinsoni rioulti Breton pp. 120-123 figs. fig. 43, pl. 5 fig. 1-7

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumEleutherozoa
—Asterozoa()
classAsteroidea
RankNameAuthor
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderValvatacea
orderValvatida
familyGoniasteridae
genusMetopaster
speciesparkinsoni()
subspeciesrioulti

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.

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Diagnosis
ReferenceDiagnosis
G. Breton 1992Form pentagonal with straight sides. Six intermediate superomarginals per side. Enlarged ultimate superomarginal triangular, a bit wider than long, in contact with three to four inferomarginals. Superomarginals with a narrow depressed margin. From one to few granule pits in the center of the central area on enlarged ultimate superomarginal, the part-bearing granule pits being slightly domed.