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Tympanoceras trisulcatum
Taxonomy
Tympanoceras trisulcatum was named by Ruzhentsev (1958). Its type specimen is PIN 455/458, a shell, and it is a 3D body fossil. Its type locality is Dombar Hills, sample 27, which is in a Pendleian carbonate limestone in Kazakhstan. It is the type species of Tympanoceras.
Synonymy list
| Year | Name and author |
|---|---|
| 1958 | Tympanoceras trisulcatum Ruzhentsev p. 295 figs. 1, 2 |
| 1971 | Tympanoceras trisulcatum Ruzhentsev and Bogoslovskaya p. 270 figs. Pl 27, figs 9,10; pl 28, figs 1-3; text-fig 64e-g |
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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 trisulcatum Ruzhentsev 1958
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 6.68 | 4.90 | 9.80 | 6.50 | 1.90 | |
| shell diameter | 5 | 22.2 | 15.0 | 34.2 | 21.7 | 7.42 | |
| shell inflation | 5 | 10.2 | 6.60 | 17.0 | 10.2 | 4.08 |
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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 (17 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pendleian | Russian Federation (Orenburg) | Tympanoceras trisulcatum (166944) | |
| Pendleian | Kazakhstan | Tympanoceras trisulcatum (8421 166865 166878 166879 166880 166881 166882 166884 166885 166888 166889 166891 166892 166893 type locality: 166894 166895) |