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Nymphaster marginatus
Taxonomy
Nymphaster marginatus was named by Sladen (1891). It is not extant. Its type specimen is Museum of Natural History, London, holotype BNHM OR 35484.
It was recombined as Ophryaster marginatus by Spencer (1913); it was recombined as Chomataster marginatus by Rasmussen (1950).
It was recombined as Ophryaster marginatus by Spencer (1913); it was recombined as Chomataster marginatus by Rasmussen (1950).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1891 | Nymphaster marginatus Sladen pp. 18-19 figs. pl. 8, fig. 4 |
| 1907 | Nymphaster marginatus Spencer p. 116 figs. fig. 11 |
| 1913 | Ophryaster marginatus Spencer p. 130 |
| 1950 | Chomataster marginatus Rasmussen pp. 83-84 figs. fig. 6b, 6g |
| 1987 | Nymphaster marginatus Gale p. 159 figs. pl. 4, fig. 10 |
| 1993 | Nymphaster marginatus Lewis p. 60 |
| 2021 | Nymphaster marginatus Jagt et al. p. 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.
†Nymphaster marginatus Sladen 1891
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. S. Gale 1987 | A small species; arms rather short, poorly demarcated from disc; eight pairs of marginals in each interradius; superomarginals broad, low, rounded, with sparse granule pits. Stratigraphical range: Santonian. |