Fig. 7From: Interpreting drag consequences of ammonoid shells by comparing studies in Westermann MorphospaceAmmonoid shell shape data in Westermann Morphospace for Late Triassic (left) and Early Jurassic (right; Hettangian only). Data are the same as Fig. 6a, b, with the size of each symbol representing the diameter of the corresponding specimen (see key)Back to article page