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Spiriferellina nasuta
Taxonomy
Spiriferellina nasuta was named by Cooper and Grant (1976). Its type specimen is USNM 153179e, a shell (Articulated shell), and it is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Spiriferellina nasuta Cooper and Grant p. 2705 figs. Pl 723, figs 1-15 |
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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.
†Spiriferellina nasuta Cooper and Grant 1976
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 8.66 | 4.60 | 53.0 | 6.00 | 21.2 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Asselian to the top of the Changhsingian or 298.90000 to 252.17000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Asselian | USA (Texas) | Spiriferellina nasuta (43468 43474 75952) | |
| Changhsingian | China (Chongqing) | Spiriferellina nasuta (94984) |