Fig. 15 in A Possible Heptaxodontine and Other Caviidan Rodents from the Quaternary of Jamaica

Fig. 15. Occlusal aspect (stereopairs) of same specimens of Boromys torrei shown in figure 14, illustrating cheektooth wear stages 1–3 (A–C). See text for description and evaluation. Boromys was probably similar to Xaymaca in body size, but cheekteeth differ radically (e.g., in spiny rats, cheekteeth exhibit furcated roots, prominent cervix, and deep enamel infolds).