146 AMERICAN MESOZOIC MAMMALIA 



Laolestes eminens 

 L. grandis 



Amblotherium gracilis 

 A. debilis 



Her-petairus arcuatus 

 IH . humilis 

 M elanodon oweni 

 M. goodrichi 

 Euthlastus cordijormis 

 Miccylotyrans tninimus 

 Maltliacolestes osborni 

 Pelicofsis dubius 

 Docodon victor 

 D. striatus 

 D. crassus 

 D. affinis 

 D. swperus 



Morrison Formation, Garden Park, Colorado 



PANTOTHERIA: 



Ke-polestes coloradensis 

 Docodon sp. 



CRETACEOUS 



Belly River Formation, Red Deer River, Alberta 



MULTITUBERCULATA: 



Citnolomys frimaevus 

 MARSUPIALIA: 



Eodelfhis cutleri 



Edmonton Formation, Alberta 



MARSUPIALIA: 



cf. Diafhorodon sp. 



Lance Formation, Niobrara County, Wyoming 



MULTITUBERCULATA: 



Meniscoessus robustus 

 Meniscoessus spp. 

 Citnolomys gracilis 

 Citnolomys spp. 

 MARSUPIALIA: 

 Pediomys elegans 

 Pediomys spp. 



