FIGURE 11. Upper cheek teeth of Perognathus mclaughlini and Oregonomys sp. from the Panaca local fauna. 11.1-11.3, occlusal and lingual views of P4s, UALP 23037, 23038, and 21285. 11.4, occlusal view of a left P4-M2, UALP 23093. 11.5, Oregonomys sp., occlusal and lingual view of a left P4, UALP 23064. The scale bar is 1 mm.