FIGURE 10. Topotypic dentary fragments and lower teeth of H. galbreathi from Fish Lake Valley. Standard orientations as in Figure 2; scale bar equals 1 mm. 'R' indicates line drawing is reversed. 10.1, UCMP 149480, partial dentary with p4-m2 in lateral view (above), occlusal view (below). 10.2, UCMP 149481, dentary fragment with p4 in lateral (right) and occlusal view of p4 (left). 10.3, UCMP 149482, m1 in buccal view (left), occlusal view (right). 10.4, UCMP 149483, m2 in buccal view (left), occlusal view (right). Abbreviation: pmf, posterior mental foramen.