Fig. 1 in Mandible morphometrics, dental microwear pattern, and palaeobiology of the extinct Balearic Dormouse Hypnomys morpheus

Fig. 1. Zygomasseteric construction in Balearic dormice. A. Skull of extant Eliomys quercinus ophiusae (MNHN1983−832) in lateral (A1) and anterior (A2) views. B. Skull of Hypnomys morpheus in lateral (B1) and anterior (B2) views. Arrows show the origin and the insertion of the lateral portions of the masseter. The skull of Hypnomys morpheus (B) corresponds to a reconstruction. Eliomys and Hypnomys are represented at the same scale. The map summarizes the evolutionary history of Balearic glirids—Hypnomys is a lineage derived from an Eliomys species isolated by the sea level rise that followed the Messinian salinity crisis, then Eliomys quercinus ophiusae followed the first human colonization (dashed arrow represents a hypothetical pathway of colonization).