Figure 3. The lower third molar of Zygolophodon sp. from Tha Chang sand pit no. 10, NRRU-TKK001: (1) occlusal view, (2) lingual view, (3) buccal view.
There are anterior and posterior crescentoids (acr and pcr) on the pretrite side that show narrow and elongated wear surfaces. The third posttrite half lophid has a main cone and smaller adaxial conelets (clts.po), but conelets are not clearly evident on the pre- trite half lophid. The unworn fourth lophid has a main cone and smaller adaxial conelet on the pretrite half lophid while the
posttrite has a large and transversely elongate main cone, however the conelet is furrow–like.Zygodont crests (zc) are present, but not so strong. The cingulids are distinctly reduced. A median sulcus divides the lophids. The talonid (posterior cingulid) is shelf–like and thicker on the pretrite side than on the posttrite side. No cementum is present (Fig. 3).
