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Elivina tibetana
Taxonomy
Spirifer tibetanus was named by Diener (1897). It is not a trace fossil. Its type locality is Chitichun No. 1 Block (1892 collection), which is in a Wuchiapingian carbonate limestone in China.
It was recombined as Spiriferella tibetana by Waterhouse (1966), Zhang and Jin (1976), Licharew and Kotlyar (1978); it was recombined as Elivina tibetana by Fantini Sestini (1965), Kalashnikov (1981), Li et al. (1986), Kalashnikov (1998), Shen et al. (2003), Waterhouse (2004), Tazawa (2008).
It was recombined as Spiriferella tibetana by Waterhouse (1966), Zhang and Jin (1976), Licharew and Kotlyar (1978); it was recombined as Elivina tibetana by Fantini Sestini (1965), Kalashnikov (1981), Li et al. (1986), Kalashnikov (1998), Shen et al. (2003), Waterhouse (2004), Tazawa (2008).
Subspecies
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1897 | Spirifer tibetanus Diener p. 45 figs. Pl 6, figs 1-7 |
| 1903 | Spirifer tibetanus Diener pp. 17, 81 |
| 1906 | Spirifer tibetanus Keidel p. 379 |
| 1913 | Spirifer tibetanus Mansuy p. 63 figs. Pl 5, fig 11; pl 6, fig 1 |
| 1965 | Elivina tibetana Fantini Sestini p. 142 figs. Pl 20, figs 2-5 |
| 1966 | Spiriferella tibetana Waterhouse p. 52 figs. Pl 2, fig 2; pl 9, fig 3; pl 12, figs 3,4; pl 13, figs 1,2,4,5 |
| 1976 | Spiriferella tibetana Zhang and Jin p. 212 figs. Pl 17, figs 1,2 |
| 1978 | Spiriferella tibetana Licharew and Kotlyar figs. Pl 18, figs 4,5 |
| 1981 | Elivina tibetana Kalashnikov p. 61 figs. Pl 16, fig 6 |
| 1986 | Elivina tibetana Li et al. figs. Pl 8, fig 4 |
| 1998 | Elivina tibetana Kalashnikov p. 54 figs. Pl 8, fig 6; pl 14, figs 7,8 |
| 2003 | Elivina tibetana Shen et al. p. 244 figs. Pl 4, figs 7-10 |
| 2004 | Elivina tibetana Waterhouse |
| 2008 | Elivina tibetana Tazawa p. 42 figs. 6.8a-6.16 |
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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.
†Elivina tibetana Diener 1897
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†Spirifer tibetanus occidentalis Schellwien 1900
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. B. Waterhouse 1966 | Transverse to elongate shells with prolonged narrow ventral umbo, narrow cardinal extremities, deep wide sulcus and well defined plicae with moderately deep interspaces, dorsal fold with median cleft. |
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 15.1 | 10.2 | 21.0 | 16.2 | 5.41 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Kasimovian to the top of the Changhsingian or 307.00000 to 251.90200 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kasimovian | Russian Federation | Elivina tibetana (133074) | |
| Asselian | China (Guangxi) | Elivina tibetana (134312) | |
| Asselian - Sakmarian | Laos | Spirifer tibetanus (233571 233572) | |
| Asselian - Sakmarian | China (Xinjiang) | Spirifer tibetanus (119867) | |
| Sakmarian | Russian Federation | Elivina tibetana (109939 109983) | |
| Capitanian | Russian Federation | Spiriferella tibetana (82329) | |
| Capitanian | Japan | Elivina tibetana (62292) | |
| Wuchiapingian | India | Elivina tibetana (132474) | |
| Wuchiapingian | China (Xizang) | Elivina tibetana (24590) Spirifer tibetanus (type locality: 89203 230327) | |
| Lopingian | India | Spirifer tibetanus (230328) | |
| Changhsingian | China (Xizang) | Spiriferella tibetana (110475) |