Articles | Volume 11, issue 10
Biogeosciences, 11, 2721–2739, 2014
Biogeosciences, 11, 2721–2739, 2014

Research article 22 May 2014

Research article | 22 May 2014

Non-invasive imaging methods applied to neo- and paleo-ontological cephalopod research

R. Hoffmann1, J. A. Schultz2, R. Schellhorn2, E. Rybacki3, H. Keupp4, S. R. Gerden1, R. Lemanis1, and S. Zachow5 R. Hoffmann et al.
  • 1Institut für Geologie, Mineralogie und Geophysik, Ruhr Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
  • 2Steinmann-Institut für Geologie, Mineralogie und Paläontologie, Rheinische Friedrich-Wilhelms-Universität Bonn, Nussallee 8, 53115 Bonn, Germany
  • 3Helmholtz-Zentrum Potsdam, Deutsches GeoForschungsZentrum GFZ Sektion 3.2, Geomechanik und Rheologie, Telegrafenberg, D 429, 14473 Potsdam, Germany
  • 4Institut für Geologische Wissenschaften, Fachrichtung Paläontologie, Freie Universität Berlin, Malteserstrasse 74–100, 12249 Berlin, Germany
  • 5Zuse Institut Berlin, Takustrasse 7, 14195 Berlin, Germany

Abstract. Several non-invasive methods are common practice in natural sciences today. Here we present how they can be applied and contribute to current topics in cephalopod (paleo-) biology. Different methods will be compared in terms of time necessary to acquire the data, amount of data, accuracy/resolution, minimum/maximum size of objects that can be studied, the degree of post-processing needed and availability. The main application of the methods is seen in morphometry and volumetry of cephalopod shells. In particular we present a method for precise buoyancy calculation. Therefore, cephalopod shells were scanned together with different reference bodies, an approach developed in medical sciences. It is necessary to know the volume of the reference bodies, which should have similar absorption properties like the object of interest. Exact volumes can be obtained from surface scanning. Depending on the dimensions of the study object different computed tomography techniques were applied.

Final-revised paper