460 KANSAS UNIVERSITY SCIENCE BULLETIN. 



dicatiag the relative abundance of specimens are employed,' but 

 in the final paper an entirely different and more definite scheme 

 will be followed. 



The discussion of the range anddistributionof species and other 

 important subjects will be given in the final paper, which will 

 probably follow two other papers on the fauna of the Coal 

 Measures. 



Doctor Girty^ has published lists of fossils assigned to the 

 rocks here under consideration, but no localities from which 

 they were taken are given. For convenience in comparing our 

 lists with his, the species common to both lists will be followed 

 by an asterisk in our list, and those not represented in our list 

 will be given as foot-notes to the list of each horizon. In no 

 case are his species to be considered as incorporated in our lists. 



For a synopsis of the literature on the Lower Coal Measures 

 the reader is referred to Adams's recent paper,* which gives a 

 review of the literature and synonomy of the formations. 



The rocks here included under the term "Lower Coal Meas- 

 ures" are the following: 



Dudley (Upper Pleasanton) shales. 



Altamont (Parsons)' limestone. 



Bandera (Lower Pleasanton) shales. 



Pawnee limestone. 



Labette shales. 



Fort Scott (Oswego) limestone (Lower, Shales, and Upper). 



Cherokee shales. 



CHEROKEE SHALES. 



The Cherokee shales are from 400 to 500 feet in thickness, 

 heavily coal-bearing, and, on the whole, rather arenaceous, 

 though their texture varies from jet black carbonaceous shales 

 through sandstone to limestone at various places and horizons. 

 Fossils are, as a rule, very rare. We were able to discover few 

 save in the calcareous layers of small extent. These were found 

 at Cherokee, Oswego, and Frontenac. In these layers fossils 

 .are abundant. These horizons are all in the upper part of the 

 shales, no fossils having been found in the lower part. 



2. aa = very abundant; a = abundant; c = common. The remainder are indicated by x. 



3. Bull. 211, U. S. Geol. Surv., pp. 29-34. 1903. 



4. Bull. 211, U. S. Geol. Surv., 1903. 



,5. The term "Altamont" seems to have been changed arbitrarily to " Parsons," which should 

 not be used. 



