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Hallaster cylindricus
Taxonomy
Palaeocoma cylindrica was named by Billings (1857). It is the type species of Hallaster.
It was recombined as Taeniaster cylindricus by Billings (1858), Wright (1863), Parks (1908) and Schuchert (1915); it was recombined as Taeniura cylindrica by Gregory (1897); it was recombined as Hallaster cylindricus by Spencer (1925) and Owen (1965).
It was recombined as Taeniaster cylindricus by Billings (1858), Wright (1863), Parks (1908) and Schuchert (1915); it was recombined as Taeniura cylindrica by Gregory (1897); it was recombined as Hallaster cylindricus by Spencer (1925) and Owen (1965).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1857 | Palaeocoma cylindrica Billings p. 292 |
| 1858 | Taeniaster cylindricus Billings p. 81 figs. pl. 10 fig. 4 |
| 1860 | Protaster forbesi Hall p. 134 figs. pl. 7A figs. 8-10 |
| 1863 | Taeniaster cylindricus Wright p. 34 |
| 1876 | Protaster forbesi Quenstedt p. 134 figs. pl. 96 fig. 13 |
| 1886 | Protaster forbesi Stürtz pp. 78, 83 |
| 1886 | Hallaster forbesi Stürtz p. 150 |
| 1897 | Taeniura cylindrica Gregory p. 1035 |
| 1908 | Taeniaster cylindricus Parks p. 371 |
| 1915 | Taeniaster cylindricus Schuchert p. 220 figs. text-fig. 18, pl. 36 figs. 2, 3 |
| 1915 | Hallaster forbesi Schuchert pp. 255-256 figs. text-fig. 31 |
| 1925 | Hallaster cylindricus Spencer pp. 293-299 figs. text-figs. 178, 179, 198-201, pl. 19 figs. 1, 2, pl. 21 figs. 1-5 |
| 1965 | Hallaster cylindricus Owen p. 554 |
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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.
†Hallaster cylindricus Billings 1857
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Invalid names: Protaster forbesi Hall 1860 [synonym]
Diagnosis
No diagnoses are available