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Xiaohenautilus abrekensis
Taxonomy
Xiaohenautilus abrekensis was named by Shigeta and Zakharov (2009). Its type specimen is NSM PM23110 and is a 3D body fossil. Its type locality is Abrek Bay AB1011, which is in a Griesbachian submarine fan sandstone in the Lazurnaya Bay Formation of the Russian Federation.
Synonymy list
| Year | Name and author |
|---|---|
| 2009 | Xiaohenautilus abrekensis Shigeta and Zakharov p. 53 figs. 36-42 |
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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.
†Xiaohenautilus abrekensis Shigeta and Zakharov 2009
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 12 | 24.9 | 4.40 | 40.0 | 29.6 | 8.48 | |
| shell diameter | 12 | 50.7 | 8.30 | 77.6 | 61.2 | 17.4 | |
| shell inflation | 12 | 14.9 | 11.4 | 17.9 | 15.0 | 2.18 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Griesbachian or 251.90200 to 250.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Griesbachian | Russian Federation | Xiaohenautilus abrekensis (type locality: 90208) |