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Haydenella deminuta
Taxonomy
Haydenella deminuta was named by Liao (1980). Its type specimen is NIGP 43604 and is a mold. Its type locality is Jiaozishan Section Bed 7 (AJ-17-12), Anshun County, which is in a Wuchiapingian coastal siltstone/sandstone in China.
Synonymy list
| Year | Name and author |
|---|---|
| 1980 | Haydenella deminuta Liao p. 261 figs. Pl 7, figs 8-11 |
| 1991 | Haydenella deminutus Shen and He |
| 2017 | Haydenella deminuta Shen et al. p. 692 |
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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.
†Haydenella deminuta Liao 1980
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| valve height | 1 | 5.00 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Williams et al. 2000, Nesnidal et al. 2013 | |||||
Age range: base of the Wuchiapingian to the top of the Changhsingian or 259.90000 to 252.17000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | China (Guizhou) | Haydenella deminuta (type locality: 112002) | |
| Changhsingian | China (Chongqing) | Haydenella deminutus (94984) | |
| Changhsingian | China (Guizhou) | Haydenella deminuta (117481) |