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Shikhanonautilus
Taxonomy
Shikhanonautilus was named by Leonova and Shchedukhin (2020). Its type is Shikhanonautilus siphonoventralis.
It was assigned to Liroceratidae by Leonova and Shchedukhin (2020), Shchedukhin (2023).
It was assigned to Liroceratidae by Leonova and Shchedukhin (2020), Shchedukhin (2023).
Species
S. compressus, S. siphonoventralis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2020 | Shikhanonautilus Leonova and Shchedukhin p. 1126 |
| 2023 | Shikhanonautilus Shchedukhin p. 501 |
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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. †Shikhanonautilus Leonova and Shchedukhin 2020
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†Shikhanonautilus compressus Shchedukhin 2023
†Shikhanonautilus siphonoventralis Leonova and Shchedukhin 2020
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 58.2 | 53.8 | 65.1 | 57.4 | 5.36 | |
| shell diameter | 4 | 95.3 | 88.1 | 104.0 | 95.0 | 8.15 | |
| shell inflation | 4 | 4.61 | 3.00 | 7.10 | 4.60 | 1.70 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Asselian | Russian Federation (Bashkortostan) | S. siphonoventralis (204136) | |
| Asselian - Sakmarian | Russian Federation (Bashkortostan) | S. siphonoventralis, S. compressus (217202) | |
| Sakmarian | Russian Federation (Bashkortostan) | S. siphonoventralis (217201) |