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Pycinaster angustatus
Taxonomy
Goniaster (Astrogonium) angustatus was named by Forbes (1848). It is not extant.
It was recombined as Astrogonium angustatum by Dujardin and Hupé (1862); it was recombined as Astrogonium angustatus by Carpenter (1882); it was recombined as Pycinaster angustatus by Sladen (1891), Spencer (1907), Spencer (1913), Valette (1915), Mercier (1935), Mercier (1936), Spencer and Wright (1966), Schulz and Weitschat (1971), Breton (1986), Breton (1992), Lewis (1993) and Breton (1997).
It was recombined as Astrogonium angustatum by Dujardin and Hupé (1862); it was recombined as Astrogonium angustatus by Carpenter (1882); it was recombined as Pycinaster angustatus by Sladen (1891), Spencer (1907), Spencer (1913), Valette (1915), Mercier (1935), Mercier (1936), Spencer and Wright (1966), Schulz and Weitschat (1971), Breton (1986), Breton (1992), Lewis (1993) and Breton (1997).
Synonyms
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Synonymy list
Year | Name and author |
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1848 | Goniaster (Astrogonium) angustatus Forbes p. 474 |
1850 | Goniaster (Astrogonium) angustatus Forbes p. 335 figs. pl. 23 fig. 10 |
1854 | Goniaster (Astrogonium) angustatus Morris p. 80 |
1862 | Astrogonium angustatum Dujardin and Hupé p. 399 |
1882 | Astrogonium angustatus Carpenter p. 529 |
1891 | Pycinaster angustatus Sladen pp. 21-24 figs. pl. 9 fig. 1 |
1905 | Pentagonaster robustus Spencer |
1907 | Pycinaster angustatus Spencer p. 95 |
1913 | Pycinaster angustatus Spencer pp. 124-125 figs. pl. 11 fig. 12-13 |
1915 | Pycinaster angustatus Valette pp. 40-41 fig. 13 |
1935 | Pycinaster angustatus Mercier pp. 12-13 figs. pl. 1 fig. 5a-c |
1936 | Pycinaster angustatus Mercier p. 24 |
1966 | Pycinaster angustatus Spencer and Wright p. U59 fig. 54.2 |
1971 | Pycinaster angustatus Schulz and Weitschat pp. 122-123 figs. pl. 26 fig. 1-7 |
1986 | Pycinaster angustatus Breton p. 29 |
1992 | Pycinaster angustatus Breton p. 430 |
1993 | Pycinaster angustatus Lewis p. 63 |
1997 | Pycinaster angustatus Breton p. 138 |
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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.
†Pycinaster angustatus Forbes 1848
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Invalid names: Pentagonaster robustus Spencer 1905 [synonym]
Diagnosis
Reference | Diagnosis | |
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G. Breton 1992 | Plates relatively small. Superomarginal plates of the disc relatively low. External face curved and rounded, the abactinal part inflated. Inferomarginal plate of the disk robust, quadrate and low. |