Fig. 1
From: Non-invasive imaging techniques combined with morphometry: a case study from Spirula
Spirula spirula images based on micro-CT data. a Surface rendering showing every minute detail of the shell surface. b Median section of the shell with different colors for every single chamber volume and siphuncle volume. c Close up of B to show the position of the anatomical landmark used to define the center of the shell (star at the dorsal attachment of the first septum to the shell, Neige and Warnke 2010)