320 University Geological Survey of Kansas. 
should also be mentioned among these early collectors, and 
many of his fossils are now in the University museum. 
The first work of considerable detail attempting to divide 
any of the rocks of this region into groups based upon their 
fauna was done by Prof. Chas. S. Prosser.?°* His grouping 
of these rocks is practically that used in this paper for the 
uppermost formations. 
The separation of the Lower from the Upper Coal Meas- 
ures in Kansas at the Bethany Falls limestone upon definite 
paleontologic grounds was first proposed by Rev. John Bennett 
in volume I of these reports. He says: “The Lower Coal 
Measures are characterized by their abundance of certain 
species which either do not appear above, or if they do, be- 
come much more rare. For instance, the little brachiopod 
Chonetes mesoloba has not thus far, to my knowledge, been 
found above the Bethany Falls limestone of Broadhead, which 
corresponds with the lower member of the Erie system of 
Bourbon county. . . . Chetetes abounds in very large 
masses in the lower rocks. . . .’° In the same report he 
also published lists of the species from several horizons. 
In the fall of 1903 Drs. Geo. I. Adams and Geo. H. Girty 
published lists of the invertebrate fossils and descriptions of 
the various lithologic horizons of the Kansas Permian and 
Carboniferous.*®* After a revision of the stratigraphy of the 
Iola quadrangle a revised list of fossils from the horizons 
there concerned was published, in which the species were 
shifted to their proper horizons.2® No especial attempt was 
made to divide the section into faunal groups, though fairly 
complete lists of the fossils were given. 
Beede published a provisional list of the fossils of the for- 
mations of Shawnee county in 1898.76 The writers have pub- 
lished five ‘““Faunal Study” papers in which lists of species 
from the various horizons were given, together with the pre- 
262. His three principal papers on this subject are: ‘“‘The Kansas River Section 
of the Permo-Carboniferous and Permian Rocks of Kansas,” Bull. Geol. Soe. Amer., 
vol. VI, pp. 29-54, 1894; “The Classification of the Upper Paleozoic Rocks of Kansas,”’ 
Jour. Geol., III, pp. 682-705, 764-800, 1895; and ‘“‘Revised Classification of the Upper 
Paleozoic Formations of Kansas,’ Jour. Geol., X, pp. 703-737, 1902 (November). 
263. Pages 309, 310. 
264. Bull. U. S. Geol. Surv., 211, 1903. 
265. Bull. U. S. Geol. Surv., 238, 1904. 
266. Trans. Kan. Acad. Sci., XV, pp. 27-34, 1898. 
