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Pachydiscoceras ellipticum
Taxonomy
Pachydiscoceras ellipticum was named by Zhao et al. (1978). Its type specimen is NIGP 14945 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 ellipticus by Leonova (2002).
It was recombined as Pseudotirolites ellipticus by Leonova (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Pachydiscoceras ellipticum Zhao et al. p. 137 figs. Pl 22, figs 7-9; text-fig 86a |
| 2002 | Pseudotirolites ellipticus 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.
†Pachydiscoceras ellipticum Zhao et al. 1978
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 15.8 | |||||
| shell diameter | 1 | 49.1 | |||||
| shell inflation | 1 | 18.6 |
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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) | Pachydiscoceras ellipticum (type locality: 98030 149297) |