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Aristoceras chkalovi
Taxonomy
Aristoceras chkalovi was named by Ruzhentsev (1940). Its type specimen is PIN 320/786, a shell, and it is a 3D body fossil. It is the type species of Aristoceras.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1940 | Aristoceras chkalovi Ruzhentsev p. 526 figs. 1-3 |
| 1950 | Aristoceras chkalovi Ruzhentsev p. 100 figs. Pl 5, figs 2-7; text-fig 33, 35a |
| 2002 | Aristoceras chkalovi Leonova |
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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.
†Aristoceras chkalovi Ruzhentsev 1940
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 10.6 | 2.80 | 24.0 | 14.7 | 9.63 | |
| shell diameter | 4 | 18.3 | 4.90 | 40.8 | 25.1 | 16.2 | |
| shell inflation | 4 | 0.001 | 0.001 | 0.001 | 0.001 | - |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Gzhelian or 303.70000 to 298.90000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gzhelian | Russian Federation | Aristoceras chkalovi (172255 172257 172258 172259 172260 172292 172364 172365) | |
| Gzhelian | Kazakhstan | Aristoceras chkalovi (172277 172366) |