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Pseudotirolites acutus
Taxonomy
Pseudotirolites acutus was named by Chao and Liang (1965). Its type specimen is NIGP 14922 and is a 3D body fossil. Its type locality is Liuhualing, Qianjiang, Laibin County, which is in a Changhsingian deep-water siliciclastic in the Dalong Formation of China.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1965 | Pseudotirolites acutus Chao and Liang figs. Pl 2, fig 17 |
| 1978 | Pseudotirolites acutus Zhao et al. p. 125 figs. Pl 17, fig 9; pl 18, figs 2,7; pl 20, fig 5; text-fig 74a |
| 1989 | Pseudotirolites acutus Sheng p. 197 figs. Pl 20, fig 5; pl 21, figs 4,5 |
| 2002 | Pseudotirolites acutus 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 acutus Chao and Liang 1965
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell diameter | 4 | 54.7 | 52.0 | 58.9 | 54.2 | 3.15 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Changhsingian or 254.17000 to 252.17000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Changhsingian | China (Sichuan) | Pseudotirolites acutus (148461 148463 149079 149086) | |
| Changhsingian | China (Guizhou) | Pseudotirolites acutus (121621 149288 149295) | |
| Changhsingian | China (Guangxi) | Pseudotirolites acutus (type locality: 121634 210124 210125) | |
| Changhsingian | China (Guangdong) | Pseudotirolites acutus (121650 121678) |