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Tympanoceras porrectum
Taxonomy
Tympanoceras porrectum was named by Ruzhentsev and Bogoslovskaya (1971). Its type specimen is PIN 455/30250, a shell, and it is a 3D body fossil. Its type locality is Dombar Hills, sample 28, which is in a Pendleian carbonate limestone in Kazakhstan.
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Tympanoceras porrectum Ruzhentsev and Bogoslovskaya p. 269 figs. Pl 27, figs 5-8; text-fig 64c |
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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.
†Tympanoceras porrectum Ruzhentsev and Bogoslovskaya 1971
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 8.79 | 5.30 | 12.6 | 10.0 | 3.35 | |
| shell diameter | 5 | 25.2 | 16.0 | 35.0 | 28.7 | 8.62 | |
| shell inflation | 5 | 10.2 | 7.20 | 12.4 | 12.3 | 2.63 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Pendleian or 330.30000 to 326.90000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pendleian | Russian Federation (Orenburg) | Tympanoceras porrectum (166475 166937) | |
| Pendleian | Kazakhstan | Tympanoceras porrectum (166866 166879 166882 166884 166885 166891 166893 166894 type locality: 166895 166898) |