FIGURE 11 in A revision of the Cretaceous ant genus Zigrasimecia Barden & Grimaldi, 2013 (Hymenoptera: Formicidae: †Zigrasimeciinae)

FIGURE 11. Type series of Zigrasimecia ferox. Putative taphonomic effects (A and B) and the corresponding states assumed to be true for the species (C and D). Black triangles in A and C point to the metanotum (or anterior propodeal) level, with holotype in A having a bump which could be an artifact of preservation. Black triangles in B and D indicate the apex of the petiole node, possibly artificially reduced by compression in B. Gray triangles in B and D indicate the anterior surface of A3 tergite, with the shelf-like projection in B being probably the result of folding of the sclerite in the taphonomic process. Cinctus on A4 (E and zoomed in F) is interpreted as a true feature of Z. ferox, not an artifact of preservation. In F, the white triangles show posterior edge of A3, black triangles indicate constriction on A4 (cinctus), which separates pre- and posttergites 4, and gray triangle shows swollen intersegmental membrane or internal liquid overflow.