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Spirigerella fusiformis
Taxonomy
Spirigerella fusiformis was named by Waagen (1883).
It was recombined as Athyrella fusiformis by Renz (1912).
It was recombined as Athyrella fusiformis by Renz (1912).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Spirigerella fusiformis Waagen p. 467 figs. Pl 38, figs 5,6 |
| 1912 | Athyrella fusiformis Renz p. 621 figs. Pl 17, fig 5 |
| 1977 | Spirigerella fusiformis Yang et al. p. 411 figs. Pl 162, fig 7 |
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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 fusiformis Waagen 1883
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 20.5 | 18.3 | 23.0 | 20.6 | 3.32 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Kungurian to the top of the Changhsingian or 283.30000 to 251.90200 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kungurian | China (Guangxi) | Spirigerella fusiformis (121054) | |
| Wuchiapingian | Pakistan | Spirigerella fusiformis (88933 125901 125908 125910 127028) | |
| Changhsingian | Pakistan | Athyrella fusiformis (236225) Spirigerella fusiformis (90251 119610) |