Janssen, A. W. (1990). Pteropod species (Mollusca, Gastropoda, Euthecosomata) from the Late Oligocene of Mogenstrup, Jylland, Denmark. Contributions to Tertiary and Quaternary Geology. 27 (2-3): 83-91.
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Janssen, A. W.
1990
Pteropod species (Mollusca, Gastropoda, Euthecosomata) from the Late Oligocene of Mogenstrup, Jylland, Denmark