Fig. 8From: Interpreting drag consequences of ammonoid shells by comparing studies in Westermann MorphospaceShell shape data from Yacobucci (2004) for fossils of five chronospecies of Neogastroplites from the Cretaceous Mowry Sea displayed in Westermann Morphospace. Contours show density of specimens in the morphospace. Two specimens of Metengonoceras are represented with filled circles in the diagram of N. cornutus Back to article page