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Metopaster thoracifer
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).
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
Synonyms
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Synonymy list
Year | Name and author |
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1871 | Stellaster plauensis Geinitz p. 88 figs. pl. 21 fig. 3-14 (non fig. 6) |
1871 | Oreaster thoracifer Geinitz p. 89 figs. pl. 22 fig. 1-14, 16 (only) |
1876 | Asterias plauensis Quenstedt p. 53 figs. pl. 91 fig. 169-171 |
1876 | Pentaceros thoracifer von Zittel p. 236 figs. fig. 272b |
1883 | Pentaceros thoracifer von Zittel p. 461 figs. fig. 333b |
1893 | Metopaster cornutus Sladen pp. 55-57 figs. pl. 14, fig. 5 |
1909 | Oreaster thoracifer Wanderer pp. 8-9 figs. pl. 2 fig. 2 |
1909 | Oreaster plauensis Wanderer p. 9 figs. pl. 2 fig. 1 |
1911 | Stellaster plauensis Fric p. 75 figs. fig. 319 |
1911 | Oreaster thoracifera Fric p. 76 |
1913 | Metopaster thoracifer Spencer p. 110 figs. pl. 10 fig. 1-3 |
1937 | Oreaster thoracifer Lehner p. 173 figs. pl. 17 fig. 10 |
1950 | Metopaster thoracifer Rasmussen pp. 24-26 figs. fig. 5, pl. 3 fig. 18 |
1987 | Metopaster thoracifer Gale p. 37 figs. fig. 12, pl. 1 fig. 5 |
1992 | Metopaster thoracifer Breton pp. 124-126 figs. fig. 46 |
2008 | Metopaster thoracifer Breton and Néraudeau pp. 329-330 figs. figs. 2.2a-b, 4.3 |
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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.
†Metopaster thoracifer Geinitz 1871
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Invalid names: Metopaster cornutus Sladen 1893 [synonym], Stellaster plauensis Geinitz 1871 [synonym]
Diagnosis
Reference | Diagnosis | |
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G. Breton 1992 | Two 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. |
Measurements
No measurements are available
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Source: f = family, c = class, p = phylum | |||||
References: Blake 1990, Aberhan 1992, Aberhan et al. 2004 |
Age range: Early/Lower Turonian or 93.50000 to 89.30000 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Early/Lower Turonian | Czech Republic | Metopaster thoracifer (90516 90518) |