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Sverdrupites amundseni
Taxonomy
Sverdrupites amundseni was named by Nassichuk (1970). Its type specimen is GSC 24224 and is a 3D body fossil. Its type locality is GSC C-1930, St. Arnaud Hils, Sabine Peninsula, Melville Island, which is in a Roadian coastal sandstone in the Assistance Formation of Canada.
Synonymy list
| Year | Name and author |
|---|---|
| 1970 | Sverdrupites amundseni Nassichuk p. 91 figs. Pl 21, figs 1,2,6; pl 22, figs 1-4,6-8; text-figs 10,11 |
| 2002 | Sverdrupites amundseni Leonova |
| 2007 | Sverdrupites amundseni Leonova and Shilovsky p. 36 figs. Pl 5, figs 7,8 |
| 2014 | Sverdrupites amundseni Leonova and Shilovsky p. 1373 figs. Pl 2, figs 7,8; text-fig 6.4a,b |
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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 amundseni Nassichuk 1970
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 18.3 | 11.8 | 23.0 | 20.6 | 4.79 | |
| shell diameter | 6 | 38.5 | 25.0 | 50.7 | 42.0 | 9.06 | |
| shell inflation | 6 | 9.67 | 8.80 | 11.0 | 9.50 | 0.812 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||