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Swiss Journal of Palaeontology
Fig. 11 | Swiss Journal of Palaeontology

Fig. 11

From: Morphological disparity in extant and extinct sepiid phragmocones: morphological adaptions for phragmocone strength compared to those related to cameral liquid emptying hypotheses

Fig. 11

Scatterplot of different morphometric relationships of Sepia spp. against depth. A Shows maximum depth plotted against number of septa/cuttlebone. The graph consistent with the hypothesis that deeper water species have cuttlebones with more septa/mm of length, with higher septal density interpreted as a pressure (depth) related adaptation. B Maximum depth of studies species, plotted against area of last loculus/total area of cuttlebone. While there is a large amount of scatter, it appears that the volume of the last loculus is reduced in deeper water-inhabiting species.

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