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Tropidelasma daijiagouensis
Taxonomy
Parageyerella daijiagouensis was named by He and Zhu (1985). Its type specimen is Inst. Mining Tech. of China 8120, a shell (Articulated shell), and it is a 3D body fossil. Its type locality is Daijiagou Section, Hechuan County, which is in a Changhsingian shallow subtidal limestone in the Changxing Formation of China.
It was recombined as Tropidelasma daijiagouensis by Chen and Liao (2007).
It was recombined as Tropidelasma daijiagouensis by Chen and Liao (2007).
Synonymy list
| Year | Name and author |
|---|---|
| 1985 | Parageyerella daijiagouensis He and Zhu p. 201 figs. Pl 3, figs 1-3 |
| 2007 | Tropidelasma daijiagouensis Chen and Liao p. 995 |
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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.
†Tropidelasma daijiagouensis He and Zhu 1985
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 15.0 |
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| Source: c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: Changhsingian or 254.14000 to 251.90200 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Changhsingian | China (Sichuan) | Parageyerella daijiagouensis (type locality: 95646) |