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Hecker, E. L.; Hecker, R. F. (1955). Remains of teuthids from the Upper Jurassic and Lower Cretaceous middle Wolgian region. Voprosy paleontologii. 2: 36-44.
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Hecker, E. L.; Hecker, R. F.
1955
Remains of teuthids from the Upper Jurassic and Lower Cretaceous middle Wolgian region
Voprosy paleontologii
2: 36-44
Publication
Date
action
by
Trachyteuthis zhuravlevi E. L. Hecker & R. F. Hecker, 1955 † (original description)