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…
       
          
        Fig. 4.
 MACN A52-618, holotype of Archaeotypotherium propheticus, mandibular symphysis and portion of
 right horizontal ramus…
       
          
        Fig. 17.
 SGOPV 2901, Pseudhyrax sp. indet., left
 mandibular fragment with partial ml-m3 in oblique la-
 bial view (left) and…
       
          
        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…