Figure 4
View of specimens as observed in 3D-Visualizer used to exemplify chalk as it relates to growth breaks. For each specimen, a cross section view is shown (left) and a cut-away of the 3D-reconstruction, which shows the cross section, but also has the rest of the shell rendered in 3D in the background (right). The thumbnail in the cross section panels shows the entire 3D reconstruction of the specimen, and the white line indicates position of the cross section and cut-away in the shell. The white triangle in the thumbnail indicates the point of view of the cutaway. The white-dashed lines in cut-away panels demarcates the separation between the cutting plane and the interior of the specimen in the background. For each image, chalk and folia are indicated by yellow and blue, respectively. Red arrows correlate specific features between the cross sectional views on the left and the 3D reconstructions on the right. For this figure, red arrows also highlight chalky deposits found under significant growth breaks.
