120 CEXOZOIC MAMMAL HORIZONS OF WESTERN NORTH AMERICA. 

 Range of Miocene genera — Continued. 



Lower. 



o 



t-, D 



I 

 to 

 O 



Pi 



Middle. 



Upper. 



AETIODACTYLA — Continued. 



Camelidae 



Pro tome ryx 



Oxydactylus 



Miolabis 



Protolabis 



Alticamelus 



Procamelus 



PlLauchenia 



? Stenomylus 



Hypertragulidae (incl. Protoceratidae) 



Syndyoceras 



Hypertragulus 



Cer\-idae 



Palseomeryx 



B la St ornery X 



Antilocaprida"(Merycodontinae) 



Mers'codus 



MIDDLE PLIOCENE. 



Blanco formation (Texas). 

 Glyptotherium zone. 



CARXIVORA. 



Caxid-E. 



Borophagus diversidens Cope. 

 ? Amphicyon sp. 



MUSTELIDJ. 



Canimartes cumniinsi Cope. 



FELID.E. 



Felis hillanus Cope. ^ 



EDENTATA. 



GLYPTODOXTID-E. 



Glyptotherium texamim Osbom. 



MEGALONTC HID.E. 



Megalonyx leptostoma Cope. 



Mylodoxtid^. 



Mylodon sp. 



PROBOSCIDEA. 



Eleihaxtid^. 



Trilopliodon(=Gomphotheriimi)shepardiiLeidy.a 



Dibelodon mirificus Leidy. 



Dibelodon tropicus Cope." 



Dibelodon praeeursor Cope. 



? Dibelodon humboldtii (Cuvier). 



PERISSODAC TYLA. 



EQUID-B. 



Pliohippus simplicidens (Cope). 

 Protohippus minutus (CoDe) (=phlegon (Hay)). 

 Protohippus cumminsii (Cope). 

 Neohipparion sp. 



ARTIODACTYLA. 



DlCOTYLICE ( = TAGASSUn)^). 



Platygonus bicalcaratus Cope. 

 Platygonus texanus Gidley. 



Camelid^. 



Pliauchenia spatula Cope. 

 Pliauehenia sp. 



This species should probably be referred to Dibelodon. 



