FIGURE 4 in A revision of the Cretaceous ant genus Zigrasimecia Barden & Grimaldi, 2013 (Hymenoptera: Formicidae: †Zigrasimeciinae)

FIGURE 4. Ventral view of the head of Gerontoformica (A) and Zigrasimecia (B). Abbreviations: cllb, clypeal lobe; dsm, dorsal surface of mandible; lb, labrum; oc, occipital carina; pgs, postgenal suture; plstf, pleurostomal fossa.Published as part of Abstract, Júlio Cezar Mário Chaul, 2023, A revision of the Cretaceous ant genus Zigrasimecia Barden & Grimaldi, 2013 (Hymenoptera: Formicidae: †Zigrasimeciinae), pp. 301-341 in Zootaxa 5325 (3) on page 309, DOI: 10.11646/zootaxa.5325.3.1, http://zenodo.org/record/824338