Figure 2. Microwear on molars of modern squirrels. (A) Callosciurus finlaysonii, M^1-2 at 20X; UMMZ 59792. (B) Detail from (A) at 70X. Scale bar is 0.30 mm. (C) Spermophilus variegatus, M^1-2 at 20X; UMMZ 89994. (D) Detail from (C) at 70X. Scale bar is 0.30 mm.