FIGURE 4 in Pteropoda (Mollusca, Gastropoda, Thecosomata) from the Paleocene-Eocene Thermal Maximum (United States Atlantic Coastal Plain)

FIGURE 4. Altaspiratella elongatoidea (Aldrich, 1887). Computed tomography (CT) scan of the specimen pictured in Figure 3.3-4, resolution 1.6 micrometer/voxel, 165 kV, detector exposure timing 750 ms. For animated version, see online at palaeo-electronica.org/content/ 2016/1662-pteropoda-from-the-usa-petm. By clicking on the image, the interactive 3D model is activated, and the reader can use the mouse to rotate the specimen and change magnification.