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Metopaster carinatus
Taxonomy
Ravniaster carinatus was named by Brünnich-Nielsen (1943). It is not extant.
It was recombined as Metopaster carinatus by Rasmussen (1950), Rasmussen (1979) and Jagt (2000).
It was recombined as Metopaster carinatus by Rasmussen (1950), Rasmussen (1979) and Jagt (2000).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1943 | Metopaster planus Brünnich-Nielsen pp. 51-52 figs. 21-22, pl. 3 fig. 9-13 |
| 1943 | Ravniaster planus Brünnich-Nielsen pp. 51-52 figs. 21-22, pl. 3 fig. 9-13 |
| 1943 | Ravniaster carinatus Brünnich-Nielsen p. 52 figs. pl. 4 fig. 34 |
| 1945 | Ravniaster planus Rasmussen p. 421 figs. pl. 9 fig. 7 |
| 1950 | Metopaster planus Rasmussen pp. 48-50 figs. pl. 5 fig. 11 |
| 1950 | Metopaster carinatus Rasmussen pp. 50-51 figs. pl. 5 fig. 12-13 |
| 1979 | Metopaster carinatus Rasmussen p. 70 |
| 1979 | Metopaster planus Rasmussen p. 70 |
| 2000 | Metopaster carinatus Jagt pp. 395-396 figs. pl. 7 fig. 9-10, pl. 9 fig. 1-3, pl. 16 |
| 2000 | Metopaster planus Jagt pp. 401-403 figs. pl. 7 fig. 13-16 |
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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 carinatus Brünnich-Nielsen 1943
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Invalid names: Ravniaster planus Brünnich-Nielsen 1943 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. W. Rasmussen 1950 | A Metopaster whose ultimate superomarginal is long, and more or less curved. Only the distal half meets the corresponding ossicle from the other side of the arm in the mid-line. The surface is evenly curved. There is a narrow depressed border, and within the spine-pits which are not evenly distributed over the whole surface. The ossicle has contacted an equally large inferomarginal. |
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Blake 1990, Aberhan et al. 2004, Aberhan 1992 | |||||