Fig. 8
Contact and morphological adaptations of the roots of adjacent mandibular cheek teeth. A. Triadan 09 and 10 showing no contact in a 2 years and 2 months old alpaca. Note the start of the divergence of the developing roots of Triadan 09 in this relatively young tooth. Triadan 10 is only at the start of its development lacking a clear structure of the roots. B. Obvious contact between the distal root of Triadan 09 and the mesial root of Triadan 10 in a 7 years and 8 months old alpaca. Note the flattened distal root of Triadan 09. The distal root of Triadan 10 also contacts the mesial root of Triadan 11 resulting in comparable morphological changes to the root tip