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Pernodoceras subtrapezoidale
Taxonomy
Pernodoceras subtrapezoidale was named by Zhao et al. (1978). Its type specimen is NIGP 14992 and is a 3D body fossil. Its type locality is Lijiachong, Lindai, Bed 2, Qingzhen County, which is in a Changhsingian marine limestone in the Changxing Formation of China.
It was recombined as Pseudotirolites subtrapezoidalis by Leonova (2002).
It was recombined as Pseudotirolites subtrapezoidalis by Leonova (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Pernodoceras subtrapezoidale Zhao et al. p. 140 figs. Pl 23, figs 8,9; text-fig 89b |
| 2002 | Pseudotirolites subtrapezoidalis Leonova |
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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.
†Pernodoceras subtrapezoidale Zhao et al. 1978
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 15.1 | |||||
| shell diameter | 1 | 41.1 | |||||
| shell inflation | 1 | 15.3 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Changhsingian or 254.14000 to 251.90200 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Changhsingian | China (Guizhou) | Pernodoceras subtrapezoidale (type locality: 98030 149295) |