Figure 3From: Head morphology of Tricholepidion gertschi indicates monophyletic ZygentomaSEM micrographs and 3D reconstruction of Tricholepidion gertschi ;. a) dorsal overview of the head; b) the musculature of the antenna, cephalic digestive tract, and tentorium in dorsal view. Abbreviations: ata, anterior tentorial arm; atp, anterior tentorial plate; cs, coronal suture; dta, dorsal tentorial arm; e, eye; fg, foregut; fr, frons; fs, frontal suture; loc, lateral ocellus; oc, occiput; ocr, occipital ridge; pe, pedicellus; poc, postocciput; pocr, postocciptial ridge; sc, scapus; Scale bar 200 μm. Images not to scale to each other. For muscle references see main text.Back to article page