FIGURE 3 in New Examples of Tyrannosaurus rex from the Lance Formation of Wyoming, United States

FIGURE 3. Tyrannosaurus rex (YPM VPPU 016516) right anterior dentary fragment from the Bighorn basin of Wyoming, USA. A, lateral. B, medial. C, dorsal. D, ventral. E, anterior. A1–E1, interpretive drawings of the dentary fragment. Abbreviations: ab, convex articular brace "chin" on the dentary symphysis; alv, alveolus; alvr, alveolar row of foramina; gdl, groove for dental lamina; idp, interdental plates; fio, foramen intermandibularis oralis; ip, inflection point where anterior and ventral margins of dentary meet; lb, lingual bar; mg, Meckelian groove; rim, sinuous rim continuing anterodorsally from articular brace of symphysis; ids, interdentary symphysis; rs, rugose surface; t, tooth; ventr, ventral row of foramina.