Fig. 1.
 MACN A52-617, holotype oi Archaeohyrax patagonicus, left side of skull, viewed as right (adapted from
 Ameghino, 1897…
       
          
        typotheres) were members of the endemic South
 American group Notoungulata. George Gaylord
 Simpson's views on the…
       
          
        Table 2. Measurements of molar row lengths for specimens of Archaeohyrax sp. nov. (Salla, Bolivia; Deseadan
 SALMA) and…
       
          
        present within the lateral depressions on the sym-
 physis, almost directly beneath the canine.
 The premolars are all heavily…
       
          
        nation of the members (e.g., Archaeohegetotheria,
 Hegetoarchaeohyracoidea) could also be used.
 Some combination of these…
       
          
        Reguero, M. a., D. a. Croft, J. J. Flynn, and A. R.
 Wyss. (2003). Small archaeohyracids (Typotheria,
 Notoungulata) from…