FIGURE 1. Occlusal view of lower third premolar of indeterminate leporine lagomorphs from Anza-Borrego Desert State Park. The top of the figure is anterior. 1.1, ABDSP (IVCM) 113/V413, left p3; 1.2, ABDSP(IVCM) 113/V1275, right p3; 1.3, ABDSP(LACM) 1906/V24889, right p3. Gray lined area is broken and at a lower level than the rest of the illustrated surface. Dashed lines indicate indeterminate trace of enamel. AR = anterior reentrant, AER = anterior external reentrant, CA = central angle, Fossetid = cement filled enamel lake, PER = posterior external reentrant, PIR = posterior internal reentrant, TH = thick enamel, TN = thin enamel. Scale equals 2 mm.