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Aulacostephanus (Aulacostephanoides) sosvaensis
Taxonomy
Tobolia sosvaensis was named by Sasonov (1960).
It was recombined as Aulacostephanus (Aulacostephanoides) sosvaensis by Mesezhnikov (1984).
It was recombined as Aulacostephanus (Aulacostephanoides) sosvaensis by Mesezhnikov (1984).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1960 | Tobolia sosvaensis Sasonov p. 154 figs. Pl 1, fig 1; pl 6, figs 3,4,6 |
| 1984 | Aulacostephanus (Aulacostephanoides) sosvaensis Mesezhnikov p. 124 figs. Pl 39, fig 1; pl 40, fig 1; pl 41, fig 1; pl 42, fig 1; pl 43, 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.
†Aulacostephanus (Aulacostephanoides) sosvaensis Sasonov 1960
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 69.1 | 41.7 | 135.5 | 71.0 | 35.6 | |
| shell diameter | 6 | 181.2 | 107.0 | 430.0 | 182.5 | 119.4 | |
| shell inflation | 6 | 67.7 | 36.3 | 200.0 | 67.0 | 61.0 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Late/Upper Kimmeridgian or 152.21000 to 149.20000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Kimmeridgian | Russian Federation (Khanty-Mansi Autonomous Okrug) | Aulacostephanus sosvaensis (58777 58778 58779) |