Fig. 2

Pulp numbering system in alpaca mandibular cheek teeth adapted from the equid numbering system by du Toit et al. [18]. Deciduous teeth are displayed in a grey box. The occlusal surface consists of cement (dark grey), enamel (light yellow), dentin (light brown), darker secondary dentin overlying pulp horns (dark brown) and the lumina of the infundibula (black). Different pulp horns are numbered with Arabic numerals (1 to 6). The lama buttress is demonstrated on Triadan 09 to 11, marked by a red asterisk