FIG. 7. — Ragechelus sahelica n. gen., n in The oldest erymnochelyine turtle skull, Ragechelus sahelica n. gen., n. sp., from the Iullemmeden basin, Upper Cretaceous of Africa, and the associated fauna in its geographical and geological context

FIG. 7. — Ragechelus sahelica n. gen., n. sp., Indamane, southwestern Niger, late Maastrichtian; interpretative drawing of the skull, holotype MNHN-RA-2018.0031. Abbreviations: aaq, area articularis quadrati; boc, basioccipital; bsph, basiphenoid; car c, carotid canal; cav pter, cavum pterygoideum; co, condylus occipitalis; col-Et, columella auris with the Eustachian tube passage; cq, commissura quadrati; fpp, foramen palatinum posterius; fp, fenestra postotica; imc, intermediate maxillo-palatine crest; ju, jugal; mc, medial maxillo-palatine crest; ms, muscle insertion zone; mx, maxilla; pal, palatine; pmx, premaxilla; po, postorbital; ppo, processus paroccipitalis opisthotici; pter w, pterygoid wing; ptp, processus trochlearis pterygoideus; q, quadrate. Ventral view. Scale bar: 4 cm.