Fig. 1 in The First Reconstruction of the Head Anatomy of a Cretaceous Insect, †Gerontoformica gracilis (Hymenoptera: Formicidae), and the Early Evolution of

Fig. 1. Photographic images of the amber fossil. (A) Overview of the amber piece:the solid arrowheads indicate synincluded adult †Gerontoformica sternorhabda, the open arrowhead indicates synincluded †G. gracilis pupa, and the circle outlines focal †G. gracilis specimen CASENT0741232. (B) Overview of specimen CASENT0741232 in ventrolateral view. (C) Head of †G. gracilis in frontolateral view (oblique dorsal); the short blue arrow indicates the process on the first labial palpomere. (D) Head of †G. gracilis in frontolateral view (oblique ventral). (E) Head of †G. gracilis in posterolateral view. Abbreviations: bb, bulbus; cl, clypeus; clc, clypeal chaetae; ce, compound eye; ess, epistomal sulcus; fc, frontal carina; fla, antennal flagellum; ga, galea; md, mandible; plb, labial palp; pmx, maxillary palp; sc, scapus.The photographs in A, B and D were also used in Boudinot et al. 2022b.