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Spiriferellina yanagidai
Taxonomy
Spiriferellina yanagidai was named by Grant (1976). Its type specimen is USNM 213105, 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 yanagidai Grant pp. 237-241 figs. Pl 65, figs 1-34 |
| 2022 | Spiriferellina yanagidai Viaretti et al. p. 688 figs. Pl 6, figs 12-17 |
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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 yanagidai Grant 1976
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 7 | 5.93 | 4.20 | 8.90 | 6.50 | 1.70 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kungurian | Oman | Spiriferellina yanagidai (166923) | |
| Roadian | Thailand | Spiriferellina yanagidai (40868) | |
| Roadian | Thailand (Trang) | Spiriferellina yanagidai (40869 40874 40878 40894 40896 40897 40898 40899) |