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Nikitinoceras (Russanovia) syzranicum
Taxonomy
Ammonites syzranicus was named by Pavlow and Lamplugh (1892) [DISTRIBUTION: Valanginian; Greenland, Siberia.]. It is not a trace fossil.
It was recombined as Nikitinoceras (Russanovia) syzranicum by Alsen (2006).
It was recombined as Nikitinoceras (Russanovia) syzranicum by Alsen (2006).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1892 | Ammonites syzranicus Pavlow and Lamplugh figs. pl. 8, fig. 12 |
| 2006 | Nikitinoceras (Russanovia) syzranicum Alsen p. 70 |
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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.
†Nikitinoceras (Russanovia) syzranicum Pavlow and Lamplugh 1892
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 24.0 | |||||
| shell diameter | 1 | 62.0 | |||||
| shell inflation | 1 | 21.1 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Valanginian or 137.05000 to 132.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Valanginian | Greenland | Nikitinoceras syzranicum (83742) |