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…
       
          
        CQ
 S3 c
 as
 Otf a
 a a ?>
 c c g
 ^5)
 3 C
 5 S <4i s
 a s
 •C 'CO,
 <;>
 ^.
 -s: -c '…
       
          
        Fig. 17.
 SGOPV 2901, Pseudhyrax sp. indet., left
 mandibular fragment with partial ml-m3 in oblique la-
 bial view (left) and…
       
          
        nation of the members (e.g., Archaeohegetotheria,
 Hegetoarchaeohyracoidea) could also be used.
 Some combination of these…
       
          
        mostly late Oligocene Deseadan SALMA. Filling
 a niche that presumably was similar to that of the
 hypsodont archaeohyracids,…
       
          
        South American Land Mammal Ages: Correlation to
 global geochronologies, pp. 317-333. In Berggren, W.
 A., D. V. Kent, M.-P.…
       
          
        Reguero, M. a., D. a. Croft, J. J. Flynn, and A. R.
 Wyss. (2003). Small archaeohyracids (Typotheria,
 Notoungulata) from…