NO. 8 MAMMALIAN FAUNA, BADWATER AREA — GAZIN 3 



helaletid (this is Dilophodon) . Nevertheless, significant collections, 

 more representative of the fauna, were not obtained from these beds 

 until Harry A, Tourtelot and his assistants secured for the U. S. 

 Geological Survey in 1944 and 1945 the materials discussed in his 

 maps and reports of 1946, 1948, and 1953. Identification of the 

 Geological Survey material was made by G. E, Lewis and reported by 

 him in 1947. Collections for the Smithsonian Institution were made 

 by F. L. Pearce, Chester Gazin, and myself in 1946, and Pearce and 

 I revisited the localities with good results in 1953. Other known col- 

 lections include that made by A. E. Wood in 1948 for Amherst Col- 

 lege, the small mammals represented having been described by him in 

 1949. Further collecting was done by Tourtelot and the unusual 

 Malaquiferus tourteloti skull was found by him near Dry Creek in 

 1948. Materials secured by the U. S. Geological Survey also included 

 a collection made by J. R. Hough in 1950, and in her 1955 report on 

 the Sage Creek occurrence comparisons are made with portions of the 

 Bad water fauna. 



OCCURRENCE AND PRESERVATION OF MATERIAL 



The principal occurrences for materials of the Badwater fauna are 

 the low gray-green exposures along the south side of Badwater Creek 

 between 2^ and 3^ miles almost due northwest of the site of the now 

 abandoned Badwater Post Ofifice. These are immediately to the south 

 and to the southeast of the mouth of Clear Creek in the southeast part 

 of section 14, the southwest part of section 13, and the northwest 

 part of section 24, T. 39 N., R. 89 W. The above, together with 

 other scattered localities, are shown on both the 1946 and 1953 maps 

 of Tourtelot, as well as his map accompanying part i of this study. 



The discovery of Badwater vertebrate remains by Wood, Seton, and 

 Hares was made at a locality south of Badwater P.O. about 3 miles 

 to the southeast of the above exposures and in section 32, T. 39 N., 

 R. 88 W. Determinable remains have likewise been encountered on 

 Lysite Mountain to the north of the Badwater area by Lewis and 

 Love, probably in section 25, T. 42 N., R. 90 W. The Dry Creek 

 exposures, almost certainly the same age as those on liadwater Creek, 

 are about 20 miles due west and include the sites for the Malaquiferus 

 and Eomoropus skulls, in the NW^ sec. 14 and the SE^ sec, 9, re- 

 spectively, T. 39 N., R. 92 W. 



Much of the fossil material encountered has been rather fragmen- 

 tary although there are five comparatively good skulls in the National 

 Museum-Geological Survey collections from there. Two of these are 



