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Pararhiphaeoceras aktastense
Taxonomy
Pararhiphaeoceras aktastense was named by Ruzhentsev and Shimanskiy (1954). Its type specimen is PIN 626/13, a shell, and it is a 3D body fossil. Its type locality is Aktasty River, eastern limestone ridge, Aktastinian, Aktyubinsk Region, which is in an Artinskian marine limestone in Kazakhstan.
Synonymy list
| Year | Name and author |
|---|---|
| 1954 | Pararhiphaeoceras aktastense Ruzhentsev and Shimanskiy p. 109 figs. Pl 10, fig 6 |
| 2020 | Pararhiphaeoceras aktastense Shchedukhin and Leonova p. 1136 figs. Pl 12, fig 2; text-fig 1 |
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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.
†Pararhiphaeoceras aktastense Ruzhentsev and Shimanskiy 1954
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 15.8 | 13.2 | 18.9 | 16.0 | 4.03 | |
| shell diameter | 2 | 44.7 | 35.2 | 56.8 | 46.0 | 15.3 | |
| shell inflation | 2 | 16.4 | 13.6 | 19.7 | 16.6 | 4.31 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Artinskian or 290.10000 to 279.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | Kazakhstan | Pararhiphaeoceras aktastense (type locality: 116788) | |
| Artinskian | Russian Federation (Bashkortostan) | Pararhiphaeoceras aktastense (217205) |