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Pseudotirolites acuticostatus
Taxonomy
Pseudotirolites acuticostatus was named by Zhao et al. (1978). Its type specimen is NIGP 14935 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.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Pseudotirolites acuticostatus Zhao et al. p. 127 figs. Pl 18, figs 10,11; pl 19, figs 3-10,14,15; text-figs 76,77,78a |
| 1981 | Pseudotirolites acuticostatus Zheng figs. Pl 2, figs 3,4 |
| 2002 | Pseudotirolites acuticostatus 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.
†Pseudotirolites acuticostatus Zhao et al. 1978
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 18.9 | 12.9 | 31.5 | 17.6 | 7.76 | |
| shell diameter | 5 | 49.1 | 32.0 | 90.6 | 45.5 | 23.8 | |
| shell inflation | 5 | 17.9 | 11.5 | 32.9 | 15.5 | 9.44 |
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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) | Pseudotirolites acuticostatus (type locality: 98030 121690) |