FIG. 4. — Proeryon charbonnieri n in Large polychelidan lobsters with a rounded carapace from the Middle Jurassic La Voulte-sur-Rhône Lagerstätte: taxonomic clarifications

FIG. 4. — Proeryon charbonnieri n. sp. from the La Voulte Lagerstätte: A, paratype MNHN.F.A50741, dorsal surface, natural light (A1) and tail-fan (A2); B, paratype UJF-ID.11548-49 (former paralectotype of S. giganteus n. comb.), partial tail-fan, counterpart, cross-polarized light; C, paratype MNHN.F.B11759, dorsal surface, natural light; D, paratype UJF-ID.14052 (former paralectotype of S. giganteus n. comb.), dorsal surface, cross-polarized light, small-sized specimen; E, paratype MHNGr.Pa.10203, dorsal surface, natural light. Abbreviations: a, branchiocardiac groove; b1, hepatic groove; ba, uropodal basipod; di, uropodal diaeresis; e1e, cervical groove; ei, cervical incision; ex, uropodal exopod; lc, lateral carina; o, eye; oph, ophiuroid; P1, pereiopod 1; s5-s6, pleonites 5 to 6; t, telson. Scale bars: 20 mm. Images: A1, A2, Peter Massicard (E-Recolnat project); B-D, D. Audo; E, Noël Podevigne.