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Spirigerella derbyi
Taxonomy
Spirigerella derbyi was named by Waagen (1883).
It was recombined as Athyrella derbyi by Renz (1912).
It was recombined as Athyrella derbyi by Renz (1912).
Subspecies
Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Spirigerella derbyi Waagen p. 453 figs. Pl 35, figs 4-7,9-13; pl 437, figs 11-13 |
| 1897 | Spirigerella derbyi Diener p. 46 figs. Pl 5, figs 6,8 |
| 1903 | Spirigerella derbyi Diener p. 89 figs. Pl 3, fig 18 |
| 1911 | Spirigerella derbyii Diener p. 12 figs. Pl 1, fig 7 |
| 1912 | Athyrella derbyi Renz p. 621 figs. Pl 16, figs 5,6; pl 17, fig 6; text-fig 28 |
| 1915 | Spirigerella derbyi Diener p. 95 figs. Pl 10, fig 5 |
| 1944 | Spirigerella derbyi Reed p. 282 figs. Pl 39, fig 6; pl 41, figs 2,8; pl 43, fig 6 |
| 1980 | Spirigerella derbyi Grunt p. 118 figs. Pl 14, fig 1; pl 16, figs 9, 10; pl 17, fig 5; text-figs 79-81 |
| 1986 | Spirigerella derbyi Grunt figs. Pl 14, figs 9-11 |
| 1995 | Spirigerella derbyi Zeng et al. figs. Pl 16, figs 10,14 |
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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.
†Spirigerella derbyi tonkinensis Frech 1911
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 12 | 13.1 | 9.00 | 24.5 | 12.0 | 4.63 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Wordian to the top of the Changhsingian or 266.90000 to 252.17000 Ma
Collections (189 total)