1 899-1 Mattheiv, Fresh-Water Tertiary of the West. 75 



X. PLIOCENE. 



A. Palo Duro. 



(goodnight beds.) 



This fauna, except for the presence of Equiis, corresponds with 



the later Loup Fork fauna, which may also be Pliocene according 



to Prof. Scott. It is too scanty for certain correlation. The 



formation overlies the Texas Loup Fork unconformably.' 



PERISSODACTYLA. 



RHINOCEROTID/E. 



Aphelops sp 



EQUID/E. 



Protohippus lentictilaris Cope T. 



' ' perditiis Leidy 



sp--. : 



Pliohippus (Hippidiuni) tnterpolatus (Cope) T. 



" " spectans (Cope) 



Eqims etirystyhis Cope . T. 



? simplicidens Cope 



B. Blanco. 

 CARNIVORA. 



CANID.E. 



Canimartes cumiiiinsii Cope T. 



BorophagHs diversidens Cope 



Felis hillautis Cope 



EDENTATA. 



Megaloftyx leptostoiniis Cope T. 



PROBOSCIDEA. 



Dibelodon huinholdtii (Cuvier) 



' ' tropicus 



" pracursor Cope T. 



Tetrabelodon shepardii (Leidy) '^ 



PERISSODACTYLA. 



EQUID^. 



Equus simplicidens Cope T. 



' ' cuniminsii Cope 



' ' miiiiitus Cope 



ARTIODACTYLA. 



SUID/E. 



P latygonus bicalcaratiir. Cope T. 



CAMELID.E. 



Pliauchenia spatula Cope T. 



' Texas Geol. Sur. Rep., 1892. 



" One specimen in American Museum of Natural History. 



