118 



CENOZOIC MAMMAL HOKIZONS 



UPPER MIOCENE AND FLOWER PLIOCENE— Continued. 



1. 2. 3. 4. 5. 1. 2. 3. 



ARTIODACTYLA— Continued 

 Cervid^. 



Palaeomeryx americanus Douglass : . . 



Palaeomeryx teres (Cope) 



Palaeomeryx trilateralis (Cope) 



Palaeomeryx sp. div 



Blastomeryx wellsl Matthew 



AntIlocaprid^ (Merycodontin^) 



Meryeodus necatus Leidy 



Merycodus furcatus (Leidy) 



Meryeodus ramosus (Cope) 



Merycodus agilis Douglass 



? ?Mervcodus tehuanu.s (Cope) 



Range of Miocene genera. 



[The figures show the number of described species in each genus. Crosses indicate that the presence of 

 the genus is recorded, but no species have been described.] 



Canidae 



Nothocyon 



Cynodesmus 



Mesocyon 



"Canis" 



Cj-narctus 



Tomarctus 



Amphicyon 



Dinocyon 



Ischyrocyon 



Enhydrocyon. . . 



? Cyon... 



Tephrocyon 



Aelurodon 



Procyonidae 



Phlaocyon 



Leptarctus 



Mustelida? 



Oligobunis 



Aelurocyon 



Megalictis 



Potamotherium . 



Brachypsalis. . . 



Lutra 



Mustela 



Putorius 



Felidae 



Nimravus 



Pseudaelurus 



"Machaerodus". 



Chrysochloridae . 



Arctoryctes . 

 Talpidae 



Talpa 



CARNIVORA. 



INSECTIVORA. 



RODENTIA. 



Sciuridae 



Sciurus 



Palaearctorays 



Cynomys 



Castoridae.'. 



Euhapsis 



Steneofiber 



Eucastor (= Dipoides) 



Lower. 



o 



O 



O 



Ph 

 ft 



t5 



i I 



Middle. 



