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Helicacanthus pervis
Taxonomy
Helicacanthus pervis was named by Pan (1977). Its type specimen is NIGP 24268, a shell, and it is a 3D body fossil. Its type locality is YHW239, Fengdeng, Changxin, Yunlong County, which is in a Bajocian/Bathonian marine horizon in the Hepingxiang Formation of China.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Helicacanthus pervis Pan p. 107 figs. Pl 6, fig 17 |
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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.
†Helicacanthus pervis Pan 1977
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 2.00 |
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| Source: superf = superfamily, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bajocian - Bathonian | China (Yunnan) | Helicacanthus pervis (type locality: 165451) |