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Planodiscoceras
Taxonomy
Planodiscoceras was named by Zhao et al. (1978).
It was synonymized subjectively with Pericarinoceras by Leonova (2002).
It was assigned to Planodiscoceratinae by Korn (2006).
It was synonymized subjectively with Pericarinoceras by Leonova (2002).
It was assigned to Planodiscoceratinae by Korn (2006).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Planodiscoceras Zhao et al. |
| 2006 | Planodiscoceras 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. †Planodiscoceras Zhao et al. 1978
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†Planodiscoceras gratiosum Chao and Liang 1966
†Planodiscoceras involutum Zhao et al. 1978
†Planodiscoceras longilobatum Zhao et al. 1978
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 11 | 9.71 | 7.20 | 15.0 | 9.00 | 2.87 | |
| shell diameter | 11 | 26.1 | 19.9 | 40.0 | 24.8 | 6.49 | |
| shell inflation | 11 | 10.2 | 8.10 | 17.0 | 9.30 | 3.06 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Wuchiapingian to the top of the Changhsingian or 259.51000 to 251.90200 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | China (Zhejiang) | P. gratiosum (97018) | |
| Wuchiapingian | China (Jiangsu) | P. involutum (120103) | |
| Wuchiapingian | China (Jiangxi) | P. gratiosum (94990 97112 144027) P. gratiosum, P. longilobatum (121670) | |
| Wuchiapingian | China (Anhui) | P. gratiosum, P. involutum (97300) P. involutum (121673) | |
| Changhsingian | China (Hunan) | P. involutum (101949) |