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Tarimspira
Taxonomy
Species
Synonyms
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Synonymy list
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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.
G. †Tarimspira Yue and Gao 1992
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†Tarimspira zhejiangensis He and Yu 1992
Invalid names: Fengzuella He and Yu 1992 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. S. Peel 2019 | Sclerites varying from bilaterally symmetrical, laterally compressed, planispirally coiled with up to three whorls, through shallowly curved and laterally compressed, to almost straight with circular cross section. Coiled morphotypes open coiled or with whorls in contact, often with a spiral keel or carina, or a shallow spiral depression, on periphero-lateral areas. Multilayered with growth lamellae overlapping lateral areas from the basal (abapical) surface. Lamellae compact externally but may be only loosely in contact internally, with cavities, and possibly a circumperipheral canal. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum | |||||
| References: Carroll 1988, Aberhan 1992 | |||||
Age range: base of the Meishucunian to the top of the Atdabanian or 530.70000 to 516.00000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Nemakit-Daldynian | China (Zhejiang) | Fengzuella zhejiangensis (86660) | |
| Meishucunian | China (Zhejiang) | Fengzuella zhejiangensis (108039) | |
| Atdabanian | Russian Federation (Siberia) | Fengzuella zhejiangensis (174252) | |
| Atdabanian | China (Zhejiang) | Fengzuella zhejiangensis (96666 96667) |