Abnormal
Elphidium incertum (Williamson), 1858

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   found in surface sediments in the  Flensburg Fjord, Baltic Sea, Germany       recent   

View of an abnormal specimen of Elphidium incertum (Williamson), 1858
Development of two whorls with different axes of rotation

Images and text with permission of I. Polovodova, University of Gothenburg Department of Earth Sciences, formerly IFM-GEOMAR from:
Irina Polovodova and Joachim Schönfeld, 2008: Foraminiferal test abnormalities in the western Baltic Sea in Journal of Foraminiferal Research, v. 38 (4), p. 318-336.

IFM GEOMAR Leibniz Institute of Marine Sciences Paleoceanography Department