Extended Data Fig. 3: Digital rendered postcanines of Polistodon chuannanensis (holotype, ZDM8601).
From: Convergent evolution of diverse jaw joints in mammaliamorphs
a–c, Lateral (right, but medial for left dentition) (a), occlusal (b), and lateral (left, right medial for right dentition) (c) views of the two lower dentitions as preserved. d–g, Lingual (d), occlusal (e), dorsal (f), and lateral (g) views of the right upper postcanines. h, Occlusal view of the left upper postcanines. i,j, Lateral (i) and lingual (j) views the left dentary (digitally rendered as semitransparent) and teeth. Abbreviations: -r, right side; -l, left side; anr, anterior root; arp, articular process; cop, coronoid process; dec, dentary condyle; i, incisor; pc, lower postcanine; PC, upper postcanine; por, posterior root.
