English: From paper: Corydaloides scudderi (Megasecoptera: Corydaloididae), Late Carboniferous, Commentry, France. (a–d) Image shows nine pairs of bifid abdominal structures with anterior and posterior parts pointed apically (presumably tracheal gills). (a) Reconstruction of habitus based on several specimens MNHN R51251, R51252, R51257, R51231 (drawn by MP). (b) Photograph of adult MNHN R51251. (c,d) Detail photographs of abdomen showing bifid tracheal gills and outlines of laterotergites MNHN R51251. tg, tracheal gills. Scale bars (a,b) 10 mm; (c) 2 mm; (d) 1 mm.
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