| Suborder: |
Goniatitina
|
| Superfamily: |
Neoicoceratoidea
|
| Family: |
Metalegoceratidae
|
| Subfamily: |
Spirolegoceratinae
|
| Genus: |
Sverdrupites
|
| Species: | kosynskyi |
| Qualifier: | ss |
| Author: |
Andrianov 1985,p.156
|
| Lower Boundary: |
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|
| Upper Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|
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