Fig. 2
From: Variability and variation in Rhyncholestes raphanurus Osgood (Paucituberculata, Caenolestidae)
Differences in ossification patterns in the anteorbital vacuity in Rhyncholestes raphanurus Osgood, from a thin bony cover (top left, FMNH 129823♂), a left closed vacuity in specimen FMNH 127475♂ (top right, white arrow), to partially and fully open in the bottom specimens (FMNH 129834♀, FMNH 129828♀). Scale bar: 1 cm