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Palaeoneilo symmetricus
Taxonomy
Palaeoneilo symmetricus was named by Fang (1987). Its type specimen is NIGP 71567, a valve (Left valve), and it is a mold. Its type locality is Mayuanli, Jiugongqiao, Shaoyang County, which is in a Wuchiapingian marine mudstone in the Douling Formation of China.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Palaeoneilo symmetricus Fang p. 365 figs. Pl 1, figs 11-13 |
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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.
†Palaeoneilo symmetricus Fang 1987
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 3 | 2.83 | 2.20 | 4.70 | 2.20 | 1.44 |
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| Source: g = genus, superf = superfamily, c = class | |||||
| References: Hendy 2009, Sanchez Roig 1926, Aberhan et al. 2004 | |||||
Age range: base of the Wuchiapingian to the top of the Capitanian or 259.90000 to 259.51000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Capitanian | China (Hunan) | Palaeoneilo symmetricus (107815) | |
| Capitanian | China (Guangdong) | Palaeoneilo symmetricus (113865) | |
| Wuchiapingian | China (Hunan) | Palaeoneilo symmetricus (type locality: 107816 107820 107826) |