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Nymphaster alseni
Taxonomy
Chomataster alseni was named by Schulz and Weitschat (1971). It is not extant. Its type specimen is University of Hamburg, collection of W. Weitschat.
It was recombined as Nymphaster alseni by Gale (1987), Gale (1989), Breton (1992), Jagt (1999), Jagt (2000) and Jagt et al. (2021).
It was recombined as Nymphaster alseni by Gale (1987), Gale (1989), Breton (1992), Jagt (1999), Jagt (2000) and Jagt et al. (2021).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Chomataster alseni Schulz and Weitschat pp. 119-121 figs. pl. 25, fig. 20-29 |
| 1975 | Chomataster alseni Schulz and Weitschat p. 279 figs. pl. 31, fig. 7 |
| 1980 | Chomataster alseni Pockrandt p. 153 figs. text-fig. 3 |
| 1987 | Nymphaster alseni Gale pp. 165-166 figs. fig. 3.3; pl. 5, fig. 2-9 |
| 1989 | Nymphaster alseni Gale p. 283 figs. fig. 2, 6 |
| 1992 | Nymphaster alseni Breton pp. 287-289 figs. pl. 35, fig. 1-6 |
| 1999 | Nymphaster alseni Jagt figs. pl. 2, fig. 19-20 |
| 2000 | Nymphaster alseni Jagt pp. 413-414 figs. pl. 13, fig. 1-4 |
| 2021 | Nymphaster alseni 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 alseni Schulz and Weitschat 1971
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. S. Gale 1987 | Interbrachial superomarginal high. Abactinal side highly domed without spine bases. Superomaginals of the arm with external face angular, adradial and abactinal sides being differentiated and bearing a conical spine base at the junction. |