Fig. 7 in A Possible Heptaxodontine and Other Caviidan Rodents from the Quaternary of Jamaica

Fig. 7. Left hemimandible of Xaymaca fulvopulvis AMNHM 268011 (holotype), in (A) medial, (B) ventral, (C) lateral, and (D) occlusal aspects. In C, the groove winding across the fossa for the superficial masseter is an artifact of some sort, perhaps created by a feeding invertebrate. Notice in D that empty cheektooth alveoli are smooth­walled and sharply inclined; m2 alveolus is normal to axis of camera lens, and thus appears larger than the other molar alveoli (which it is not).