Fig. 4. 3D in Crab in amber reveals an early colonization of nonmarine environments during the Cretaceous

Fig. 4. 3D reconstructions of Cretapsara athanata Luque gen. et sp. nov. holotype LYAM-9 and itsgills. (A) Asingle micro-CT slice, coronal section near the base of eyestalks. (B) 3Dmeshextractedfromreconstructedmicro-CT datain VGSTUDIO MAX, remeshedin MeshLab,and visualizedusing Autodesk Maya (see Materialsand Methods); dorsal view showing the position of the gills. (C) Right lateral oblique view. (D) Close-up of (C) showing the right (bottom) and left (top) gills seen from the right side. (E and F) Close-up of the right gills seen from inside (E) and outside (F). Notice the branchial lamellae and the afferent/efferent vessels. Images by E.G.C. Figure by J.L.