TABLE OF CONTENTS. 



Pafie. 



PREFACE 14 



EXTINCT VERTEBRATE FAUNA OF THE BRIDGER TERTIARY FORMATION OF WYOM- 

 ING TERRITORY 15 



INTRODUCTION 15 



MAMMALIA 27 



Oider PcrissodactyJa 27 



PalsBosyops - 27 



paludosua 28 



major 45 



Junius 57 



Lininoliy us 57 



Hyrachy us 51( 



agrarius (iO 



exiaiius OG 



modestus 07 



nanus fi7 



Lopliiotberium <i'J 



sylvaticum : G9 



Trogosus • 71 



castorifleus 71 



vetulus 75 



Hyopsodas 75 



paulus 75 



niinuscnlus 81 



Microsus HI 



cnspidatus 81 



Myciosy ops 82 



gracilis 83 



Nothaictus 86 



tenebrosus 86 



Hipposy us 90 



formosus 90 



robustior 93 



Order Prohoscidea 93 



Uintatberium 93 



robustum 96 



Order iJo(?(;H(ia 109 



Paraniys 109 



delicatus -. 110 



delieatior 110 



delicatissimus Ill 



Mysops I'l 



minimus Ill 



fraternus 11- 



Soiuravus 113 



Order Carnirora Ill 



Patrioft-lis 114 



ulta 114 



Sinopa : 11<5 



ra]ias 116 



eximia ■■ 1^^ 



;/;^ 



