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Chaotianoceras densistriatum
Taxonomy
Chaotianoceras densistriatum was named by Zhao et al. (1978). Its type specimen is NIGP 14951 and is a 3D body fossil. Its type locality is Mingyuexia, south limb of anticline, Chaotian, Guangyuan County, which is in a Changhsingian deep-water siliciclastic in the Dalong Formation of China.
It was recombined as Pseudotirolites densistriatus by Leonova (2002).
It was recombined as Pseudotirolites densistriatus by Leonova (2002).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Chaotianoceras densistriatum Zhao et al. p. 132 figs. Pl 20, figs 16,17; text-fig 80c |
| 2002 | Pseudotirolites densistriatus 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.
†Chaotianoceras densistriatum Zhao et al. 1978
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 18.1 | |||||
| shell diameter | 1 | 61.8 | |||||
| shell inflation | 1 | 31.1 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
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 (Sichuan) | Chaotianoceras densistriatum (type locality: 121652 148463) |