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Shikhanonautilus compressus
Taxonomy
Shikhanonautilus compressus was named by Shchedukhin (2023). Its type specimen is PIN 5668/221, a shell, and it is a mold. Its type locality is Shakh-Tau Shikhan, which is in an Asselian/Sakmarian reef, buildup or bioherm reef rocks in the Russian Federation.
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Shikhanonautilus compressus Shchedukhin p. 502 figs. Pl 3, fig 1; text-figs 1b,d |
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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.
†Shikhanonautilus compressus Shchedukhin 2023
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 59.6 | 53.8 | 65.1 | 60.4 | 5.68 | |
| shell diameter | 3 | 97.4 | 88.1 | 104.0 | 101.0 | 8.45 | |
| shell inflation | 3 | 3.99 | 3.00 | 4.70 | 4.50 | 0.929 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Asselian - Sakmarian | Russian Federation (Bashkortostan) | Shikhanonautilus compressus (type locality: 217202) |