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Retimarginifera xizangensis
Taxonomy
Retimarginifera xizangensis was named by Shen et al. (2000). Its type specimen is NMV P148893, a shell (Articulated specimen), and it is a 3D body fossil. Its type locality is Selong Xishan, Bed 9, which is in a Changhsingian shallow subtidal limestone in China.
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Retimarginifera xizangensis Shen et al. p. 741 figs. 10.1-10.7, 10.19, 10.20; Fig 11 |
| 2003 | Retimarginifera xizangensis Shen et al. p. 77 figs. Pl 8, figs 11-14; pl 9, figs 1-6; text-figs 10,11 |
| 2018 | Retimarginifera xizangensis Xu et al. p. 148 figs. Pl 1, figs 5-9 |
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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.
†Retimarginifera xizangensis Shen et al. 2000
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 5.00 | 4.10 | 6.50 | 4.85 | 1.02 | |
| valve height | 1 | 7.50 | - | - | - | - |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013, Williams et al. 2000 | |||||
Age range: base of the Wuchiapingian to the top of the Changhsingian or 259.51000 to 251.90200 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | China (Xizang) | Lamnimargus himalayensis (61562) Marginifera himalayensis (121587 121588 121594 121599) Retimarginifera xizangensis (73593 73594 73595 73596 73597 73598 73599) | |
| Lopingian | China (Xizang) | Retimarginifera xizangensis (192075) | |
| Changhsingian | China (Xizang) | Marginifera himalayensis (110495 121592) Retimarginifera xizangensis (73600 type locality: 73601 73602) |