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Spirolegoceratids (Ammonoidea) from northeastern Russia
R. V. Kutygin
1996
Article
Paleontological Journal
30(5):506-514
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Taxa discussed in this work:
Pseudosverdrupites
Pseudosverdrupites budnikovi
Sverdrupites baraiensis
Sverdrupites harkeri
Taxonomy:
Pseudosverdrupites budnikovi
belongs to
Pseudosverdrupites
- Kutygin (1996)
Sverdrupites baraiensis
belongs to
Sverdrupites
- Kutygin (1996)