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Chaotianoceras
Taxonomy
Chaotianoceras was named by Zhao and Liang (1974).
It was synonymized subjectively with Pseudotirolites by Leonova (2002).
It was assigned to Pseudotirolitidae by Korn (2006).
It was synonymized subjectively with Pseudotirolites by Leonova (2002).
It was assigned to Pseudotirolitidae by Korn (2006).
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Chaotianoceras Zhao and Liang |
| 2006 | Chaotianoceras Korn |
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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.
G. †Chaotianoceras Zhao and Liang 1974
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†Chaotianoceras densistriatum Zhao et al. 1978
†Chaotianoceras maoertangense Zhao et al. 1978
†Chaotianoceras minutum Zhao et al. 1978
†Chaotianoceras modestum Zhao and Liang 1974
†Chaotianoceras nodosum Zhao et al. 1978
†Chaotianoceras obliquum Zhao et al. 1978
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 9 | 13.2 | 9.70 | 21.2 | 11.8 | 4.70 | |
| shell diameter | 9 | 44.0 | 26.9 | 61.8 | 49.5 | 12.8 | |
| shell inflation | 9 | 15.4 | 10.1 | 31.1 | 14.2 | 7.80 |
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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 (Shaanxi) | C. sp. (121409) | |
| Changhsingian | China (Sichuan) | C. densistriatum, C. obliquum (121652) C. maoertangense, C. obliquum (121641) C. modestum (148464) C. modestum, C. densistriatum (148463) C. modestum, C. nodosum, C. minutum (98048) C. nodosum (111609 121642 121660 122173) C. shaheense (149084) C. sp. (149078) |