JUL 2 5 1930 



jfo'jf 



P4LEONTOLOGIC4L BULLETIN 



No. 28. 



PAGE. 



On New Vertebratn from the Upper Tertiaries of the West 219 



On New Saurians discovered by Mr. Wheatley in the Trias of Penn- 

 sylvania 231 



i)n the Vertebrata o{ the Dakota Epoch of Colorado 2H3 



