-40 BULLETIN 169, UNITED STATES NATIONAL MUSEUM 



Loc. 39.— Sec. 15, T. 4 N., R. 15 E. This locality is also near the 

 base of the No. 3 beds, and at about the same level as Logs. 82 and 53, 

 possibly a little higher. Plere were found a lower jaw fragment of 

 Claenodon of. jerox and limb bones probably of a pantolambdid. 



Loc. 12.— Sec. 30, T. 6 N., R. 15 E. This locahty is adjacent to 

 the next, Loc. 27, and at a slightly lower level. It yielded an upper 

 jaw of Anisonchus sedorius. 



Loc. 27.— Sec. 30, T. 6 N., R. 15 E. This and Loc. 28 are at about 

 the same level, 300 to 400 feet above the base of the No. 3 beds, on 

 x)pposite sides of the Harlowton-Melville road where it turns after 

 descending the "Fish Creek Hill." ^^ The type material of Gidleyina 

 .silberlingi is from here. 



Loc. 28.— Sec. 29, T. 6 N., R. 15 E. A httle less than quarter of a 

 .mile northeast of Loc. 27 and at about the same level. It yielded an 

 upper tooth of a pantolambdid and one identified as cf. Conoryctes sp, 



Princeton Localities 



Under this general heading I group numerous localities in the 

 western part of T. 5 N., R. 15 E., and two in the northeastern part 

 iof T. 5 N., R. 14 E. The exact localities are given in the serial list 

 ,and on the map. These localities were found and worked by the Prince- 

 ton parties under Farr in 1902 and 1903 and were thoroughly pros- 

 pected at that time, the surfaces apparently very well cleared. Air. 

 Silberling, Mr. Silberling and I, and the Third Scarritt Expedition 

 liave at intervals between 1903 and 1935 gone over these localities 

 again, but they have not yielded much new material. In the past 

 few years their surface conditions have been increasingly unfavorable 

 .for collecting. Mr. Silberling's system of locality records was not 

 initiated until several years after the Princeton work, and the locality 

 records of the 1902 and 1903 collections, at least as they are now pre- 

 served, are very vague and not entirely reliable, especially as these 

 parties also collected much material in those years at widely different 

 ievels in other parts of the field. There are a number of identifiable 

 mammal specimens in the Princeton collections that can be definitely 

 placed, on the basis of such records as are preserved and of Mr. 

 Silberling's certain recollection of particular specimens, in a cluster 

 -of localities all at about the same level. Two more are possibly from 

 this general area and level, but not definitely placed. The others 

 (eight cataloged specimens) are surely or probably from quite different 

 jlevels and locaHties and are mentioned elsewhere. 



Lacs. 36, 38, 40, 41, 42, 43, 45, 57, 59, 60, and 68.—K\\ in sees. 17, 



19, 20, and 29, T. 5 N., R. 15 E., all Princeton mammal locaHties, all 



at approximately the same level, stratigraphic differences probably not 



<over 100 feet (which is generally insignificant in this field) and are 



" As the road was until 1935, at least. Its course may be changed by work then in progress. 



