478 



MUSEO NACIONAL DE BUENOS AIRES. 



■f Pi'oti/pofherium 

 •f Patriarchus 

 •\ Icochihis 

 ■\ Interatherium 

 t Toxodontia 

 -|- Nesodontidae 

 f Nesodon 

 •j- Adinotherium 

 •f Acrotherimn 

 •j" Rliadinotherium 

 ■j- Gronotheriuní 

 •f Xotoprodon 



•\- XOTODONTIDAE 



•j- Palaeolithops 

 Perissodaclyla 



•j- Proterotheriidae 

 ■j- Proterotherium 

 •\ Anissolophus 

 •f letramerorliinus 

 •j- Licaphrium 

 •f Licaphrops 

 •\ Tídwdon 

 ■\ Heptaconus 

 •j* Thoatherium 

 •\ Diadiaphorus 



•J- Macrauchenitdae 



j- 

 i 



•f Adiantidae 

 ■j- Adiantus 

 f Amblypoda 



-|- ASTRAPOTHERIIDAE 



-|- Astrapotlierium 

 f Ancylopoda 



-|- HOMALOTHERIIDAE 



■j- Homalotlierium 

 ■\ Diorotherium 

 Rodentia 



COÉNÜIDAE 



j Steironiys 

 Anomalüridae 



-j- Acaremys 

 ■\ Sciamys 

 Dasyproctidae 

 ■\ Olenopsis 

 Myocastoridae 

 •j" Neoreomys 



Sclaeromys 



Lomomys 

 •\ Paramyocastor 

 Capromyidae 



Adelplwmys 



Sticliomys 



Gyrignoplius 



Grapliimys 



Spaniomys 

 Viscacciidae 



Sphaeromys 



Perhnys 

 -j- Pliolagostomus 

 -j- Prolagostomus 



Magestus 



Scotaeumys 



Eocardudae 



Eocardia 

 T Dicardia 



Schistomys 



Edímys 

 Paucituberculata 



A-BDERITIDAE 



"h Abderites 



Epanorthidae 



Epanorthus 

 Y Metaepanorthus 



Paraepanorthus 



Prepanorthus 



Decastis 

 "h Acdestis 



Metriodromus 



Halmadromus 

 ■7 Callomenus 



Hahnasehis 



