Fig. 1

Lower molars of Hispanomys decedens from La Grive-Saint Alban (fissure L5′). a Left mandible with m1–m3 (FSL 67005). b Left mandible with m1–m3 (FSL 67002). c Right mandible with m1–m3 (FSL 67001). d Right mandible with m1–m3 (FSL 67003). e Left mandibular fragment with m1–m2 (FSL 67004). f Close-up of the metalophulid II of specimen FSL 67004. Scale bar represents 2 mm, except for f (200 μm)