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Stauranderaster pistilliferus
Taxonomy
Oreaster pistilliferus was named by Forbes (1848). It is not extant. Its type specimen is Syntype BNHM E 2564, E 5037, OR 57634.
It was recombined as Pentaceros pistilliferus by Spencer (1905); it was recombined as Stauranderaster pistilliferus by Spencer (1907), Spencer (1913), Valette (1915), Lewis (1993) and Villier et al. (2004).
It was recombined as Pentaceros pistilliferus by Spencer (1905); it was recombined as Stauranderaster pistilliferus by Spencer (1907), Spencer (1913), Valette (1915), Lewis (1993) and Villier et al. (2004).
Synonymy list
| Year | Name and author |
|---|---|
| 1848 | Oreaster pistilliferus Forbes p. 467 |
| 1850 | Oreaster pistilliferus Forbes p. 329 figs. pl. 21 fig. 5 |
| 1862 | Oreaster pistilliformis Dujardin and Hupé p. 389 |
| 1876 | Oreaster pistilliferus Quenstedt p. 99 figs. pl. 94 fig. 4 |
| 1882 | Oreaster pistilliferus Carpenter p. 530 |
| 1905 | Pentaceros pistilliferus Spencer pp. 88-89 figs. pl. 25 fig. 5 |
| 1907 | Stauranderaster pistilliferus Spencer p. 120 fig. 29 |
| 1913 | Stauranderaster pistilliferus Spencer pp. 135-136 |
| 1915 | Stauranderaster pistilliferus Valette p. 55 |
| 1993 | Stauranderaster pistilliferus Lewis pp. 65-66 |
| 2004 | Stauranderaster pistilliferus Villier et al. p. 39 |
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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.
†Stauranderaster pistilliferus Forbes 1848
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. K. Spencer 1913 | The arm in cross section shows a median row of radialia and two rows of marginalia along each side. One or two very small ossicles suggest the presence of intermarginalia which appear to be general in the genus. The radialia and the two series of marginalia are very similar in outer view. They are narrow, shuttle-shaped and frequently tumid in the centre. There is a narrow rabbet edge, which is much more evident on the younger distal ossicles than on the older proximal ossicles. The tumid central area appears usually to have been covered with closely crowded granular spines, contained in very shallow spine pits. Often these spine pits are very difficult to distinguish. In certain case, they may have been absent. The largest superomarginalia are 5mm broad and 2.7mm long. The inferomarginalia are similar in size. The large plates which must have originally formed a circlet round the disc are characteristically high. Several rows of ventro-lateralia enter the arm. These ossicles are small, smooth, tumid and quadrate. Their diameter was about 1.5mm. The adambulacralia appear to have carried two rows of spines. There were three spines in each row. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992 | |||||
Collections
No collection or age range data are available