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Crateraster favosus
Taxonomy
Teichaster favosus was named by Spencer (1913). It is not extant. Its type specimen is Natural History Museum, holotype BNHM E 13238, paratype BNHM E 13300. It is the type species of Teichaster. It was considered monophyletic by Gale (1987).
It was recombined as Crateraster favosus by Lewis (1993), Jagt (2000) and Reich and Frenzel (2002).
It was recombined as Crateraster favosus by Lewis (1993), Jagt (2000) and Reich and Frenzel (2002).
Subspecies
Synonymy list
Year | Name and author |
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1913 | Teichaster favosus Spencer p. 122 figs. pl. 12 fig. 14-15 only |
1966 | Teichaster favosus Spencer and Wright p. U63 figs. U63, fig. 56.7 |
1981 | Teichaster favosus Schulz and Weitschat p. 34 figs. pl. 5 fig. 5-6 |
1987 | Teichaster favosus Gale pp. 181-183 figs. 6a, pl. 7 fig. 7-19 |
1993 | Crateraster favosus Lewis p. 52 |
2000 | Crateraster favosus Jagt pp. 422-423 figs. pl. 16 fig. 10-11 |
2002 | Crateraster favosus Reich and Frenzel p. 182 |
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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.
†Crateraster favosus Spencer 1913
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†Teichaster favosus retiformis Spencer 1913
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Diagnosis
Reference | Diagnosis | |
---|---|---|
A. S. Gale 1987 | Arms curved aborally. Marginals decrease in size evenly towards arm tips, superomarginals with steeply inclined rounded aboral surfaces, lateral surfaces short, vertical. Rugosities absent in fully-grown individuals. |