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

Fig. 3. 3D mesh of Cretapsara athanata Luque gen. et sp. nov. holotype LYAM-9. (A to E) 3D mesh extracted from reconstructed micro-CT data in VGSTUDIO MAX, remeshedin MeshLab, andvisualized using Autodesk Maya: (A) dorsal, (B) ventral, (C) right lateral, (D) oblique postero-dorsal, (E) oblique antero-ventral views, showing the claws of equal size and four pairs of slenderlegs similar in shape and size, with P5 slightly smaller than the other legs. (F and G) Details of the dorsal (F) and ventral (G) carapace, showing details of the largeeyes andorbits, small antennae, and asmall, acute outer orbitalspine [(F) thick arrow], two small anterolateral spines (F, thin arrows), aposterolateral marginbearingat leastfoursmallandequidistant tubercles (F, smallarrows), straightposteriormargin, slendercoxae of thepereopods,atypicalheterotreme eubrachyuran sternum (G), andareduced andfolded pleonwith thefirstpleonites dorsally exposed. Leftfifth pereopoddigitallyreattached.bcg, branchiocardiac groove; ca, carpus; cg, cervicalgroove; cx, coxa; da, dactylus; ib, ischiobasis; ma,manus or palm of claw; P1, claws or chelipeds; P2 to P5,pereopods or walking legs 2 to 5; po,pollex or fixed finger cheliped propodus; pr,propodus. Images by E.G.C. Figure by J.L.