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Metopaster thoracifer

Asteroidea - Valvatida - Goniasteridae

Taxonomy
Oreaster thoracifer was named by Geinitz (1871). It is not extant. Its type specimen is supposedly housed in the Natural History Museum of Dresden.

It was recombined as Pentaceros thoracifer by von Zittel (1876) and von Zittel (1883); it was recombined as Metopaster thoracifer by Spencer (1913), Rasmussen (1950), Gale (1987), Breton (1992) and Breton and Néraudeau (2008).

Sister species lacking formal opinion data

View classification of included taxa

Synonyms
Synonymy list
YearName and author
1871Stellaster plauensis Geinitz p. 88 figs. pl. 21 fig. 3-14 (non fig. 6)
1871Oreaster thoracifer Geinitz p. 89 figs. pl. 22 fig. 1-14, 16 (only)
1876Asterias plauensis Quenstedt p. 53 figs. pl. 91 fig. 169-171
1876Pentaceros thoracifer von Zittel p. 236 figs. fig. 272b
1883Pentaceros thoracifer von Zittel p. 461 figs. fig. 333b
1893Metopaster cornutus Sladen pp. 55-57 figs. pl. 14, fig. 5
1909Oreaster thoracifer Wanderer pp. 8-9 figs. pl. 2 fig. 2
1909Oreaster plauensis Wanderer p. 9 figs. pl. 2 fig. 1
1911Stellaster plauensis Fric p. 75 figs. fig. 319
1911Oreaster thoracifera Fric p. 76
1913Metopaster thoracifer Spencer p. 110 figs. pl. 10 fig. 1-3
1937Oreaster thoracifer Lehner p. 173 figs. pl. 17 fig. 10
1950Metopaster thoracifer Rasmussen pp. 24-26 figs. fig. 5, pl. 3 fig. 18
1987Metopaster thoracifer Gale p. 37 figs. fig. 12, pl. 1 fig. 5
1992Metopaster thoracifer Breton pp. 124-126 figs. fig. 46
2008Metopaster thoracifer Breton and Néraudeau pp. 329-330 figs. figs. 2.2a-b, 4.3

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumEchinodermata
subphylumAsterozoa
classAsteroidea
RankNameAuthor
subclassAmbuloasteroidea
infraclassNeoasteroidea()
superorderValvatacea
orderValvatida
familyGoniasteridae
genusMetopaster
speciesthoracifer()

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
G. Breton 1992Two or four intermediate superomarginal per side (according to the type of plates). Enlarged ultimate superomarginal low, triangular, longer than wide, in contact with three to four inferomarginals. External face with typically one, two or more bulge erected abactinally or abradially and grounded on a crest or an inflated part along the abactinal face. The association of crest and bulges is more or less developed and lack sometime. Granule pits on the domed part of the external face.