PALEOCENE M.VMMALS OF CENTRAL UTAH GAZIN 6 



CatopsaUs utahensis, Oxyclaenus pearcei^ Haploconus inopinatus^ and 

 Ellipsodon cf. shepherdi. The lower level, stratigraphicaily about 165 

 feet lower, has produced a new fauna that is more nearly equivalent to 

 that of the Puerco but may be somewhat younger than the latter. 

 This lower horizon, which may be knowni as the Wagonroad stage, 

 is perhaps 10 or 15 feet above a level that may be arbitrarily defined 

 as the base of the Paleocene in this region. 



Lists of the forms recognized in tlie two faunas are eiven below: 



DRAGON FAUNA 

 Mdltitdbercdlata : 

 Taenlolabididae : 



CatopsaUs utahensis Gazin 

 Ptilodontidae : 



Ptilodus ferronensis, new species 



INSECTIVORA : 



Pantolestidae : 



Aphronorus simpsoni Gazin 

 Pantolestid (a), genus and species 



undetermined 

 Pantolestid (b), genus and species 



undetermined 

 M'xodectidae : 



Dracontolestcs aphantus, new 



gonus and species 

 Mixodectid (a), genus and species 



undetermined 



TAEKIODONTA : 



Stylinodontidae : 



Conoriictella dragonensis Gazin 

 Stylinodont, near Psittacotlierium 



Carxivoka : 



Arctiicyonidae : 



Prot ogpnodonl spiekeri Gazin 



Prctogonodon biatheles, new species 



Oxyclaenus pearcei, new species 



Oxyclaenid 



Tricentes elassus, new species 



Goniacodonl species 

 Miacidae : 



Didymictisl species 



CONDYr.ARTHUA : 



Hyopsodontidae : 



Dracoclaenus griphus Gazin 

 Ojytomodon perissum, new genus 



and species 

 Ellipsodon shepherdi Gazin 

 Ellipsodon'i sternhergi Gazin 

 Ellipsodon'! species (a) 

 Jepsenia mantiensis Gazin 



Plienacodontidae : 



Desmatoclaenus cf. 

 Periptychidae : 



paraereodua 



Periptychus gilmorei Gazin 

 Anisonchus dracus Gazin 

 Anisoyiclus onostus Gazin 

 Haploconus inopinatus Gazin 



WAGONROAD FAUNA 



Taeniolabia species 



Mixodectid? (b), genus and species unde- 

 termined 



Protogonodonl species 

 Oxyclaenus species 



Ellipsodon f species (b) 



Desmatoclaenus hcrmaeus, new genus and 



species 

 Desmatoclaenus paracreodus, new species 



Ectoconus symtolus, new species 

 Carsioptychus hamaxitus, new species 

 Anisonchus oligistus, new species 



Haploconus f elachistus, new species 



