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Sverdrupites harkeri
Taxonomy
Spirolegoceras harkeri was named by Ruzhentsev (1961). It is not a trace fossil. Its type locality is GSC 26406, Lyall River, Grinnell Peninsula, Devon Island, which is in a Roadian offshore shelf sandstone/limestone in the Assistance Formation of Canada. It is the type species of Sverdrupites.
It was recombined as Sverdrupites harkeri by Nassichuk (1970), Andrianov (1985), Kutygin (1996), Leonova (2002) and Leonova and Shilovsky (2014).
It was recombined as Sverdrupites harkeri by Nassichuk (1970), Andrianov (1985), Kutygin (1996), Leonova (2002) and Leonova and Shilovsky (2014).
Synonymy list
| Year | Name and author |
|---|---|
| 1961 | Spirolegoceras harkeri Ruzhentsev |
| 1965 | Spirolegoceras harkeri Nassichuk et al. p. 29 figs. Pl 3, figs 3,4; pl 4, figs 1-3; text-figs 6B,C, 7, 8B,C |
| 1970 | Sverdrupites harkeri Nassichuk p. 89 figs. Pl 21, figs 3,4,6,7,9; pl 22, fig 5; tex-figs 8,9 |
| 1985 | Sverdrupites harkeri Andrianov p. 152 figs. Pl 17, figs 2,3; pl 18, figs 1,2,4,6; pl 21, fig 1; text-fig 51 |
| 1996 | Sverdrupites harkeri Kutygin p. 510 |
| 2002 | Sverdrupites harkeri Leonova |
| 2014 | Sverdrupites harkeri Leonova and Shilovsky p. 1372 figs. Pl 2, figs 1-6; text-fig 6.3 |
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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.
†Sverdrupites harkeri Ruzhentsev 1961
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 10 | 16.3 | 7.00 | 44.0 | 15.0 | 12.4 | |
| shell diameter | 10 | 36.5 | 17.5 | 105.0 | 34.0 | 28.0 | |
| shell inflation | 10 | 9.40 | 5.00 | 35.0 | 7.85 | 8.87 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Roadian or 272.30000 to 268.80000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Roadian | Russian Federation | Sverdrupites harkeri (81510 88433 102213 111026 111027 111240 164547 175686 175687 175689) | |
| Roadian | Canada (Nunavut) | Metalegoceras sp. (type locality: 11089) Sverdrupites harkeri (115644 115763) |