202 



SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY, 1921. 



and would not be mentioned in the present 

 connection if it were not for the necessity of 

 showino; that the correlation of the Texas 

 Comanche series with the Lower Ci-etaceous 

 of Europe is incorrect and can not hope to be 

 ultimately accepted, and because this problem 

 is so inthnatel}- bound up with the age of the 

 Cheyenne sandstone. 



If there is no marine Lower Cretaceous in 

 Kansas, as I contend, our ideas of the sequence 

 of events from late Lower Cretaceous time into 

 the Upper Cretaceous require to be very greatly 

 modified. 



With regard to Twenhofel's proposal to refer 

 the Mentor and Dakota of central Kansas to 

 the Comanche, all that I can say is that while 

 he and before him Cragin and others have 

 written about the Dakota flora, this term is 

 altogether meaningless stratigraphically, ex- 

 cept that it denotes in a most general way a 

 change in facies between Lower and Upper 

 Cretaceous floras. The flora of the Cheyenne 

 sandstone, and I presume that in the Mentor 

 formation as well, is no more like that of the 

 Woodbine sand than the Woodbine flora is like 

 that of the several formations of the Montana 

 group, and the reference of the Dakota sand- 

 stone — that is, the post-Mentor Dakota sand- 

 stone ot central Kansas — to the Lower Cre- 

 taceous if correct would of necessity carry 

 with it the Bingen sand of Arkansas, the Tus- 

 caloosa formaticm of Alabama, the Black Creek 

 formation of the Carolinas, and the Magothy 

 formation of New Jersey and Maryland, against 

 whose correlation with the Senonian of Europe 

 by paleozoologists I have been arguing for 

 years, with not very great success. 



LOCALITIES. 



All the localities from which fossil plants 

 were collected in the Cheyenne sandstone are 

 in the immediate vicinity of Belvidcre, Kiowa 

 County, Kans. (See PI. XLVI.) I give be- 

 low a transcription of the locality numbers, 

 with the names of the collectors and dates, 

 taken from the United States Geological Sur- 

 vey's records. There appears to be some con- 

 fusion in the two collections numbered 2224, 

 nor do I have locality numbers for the material 

 collected by Ward and Vaughan in 1896. 

 These defects in the record are immaterial, 

 however, for there is no doubt that all the ma- 

 terial studied came from the Cheyenne sand- 



stone in this immediate region. Many of the 

 numbers are duplications of identical outcrops 

 and are given only as a matter of record. 



773. Black hills near Belvideie; collected by Uill, 

 Gould, and Shattuck, 1894. 



2217. Osage RockatBeh'idere, from Nos. 1 and 2 of Hill's 

 section; collected by O. L. Cain, 1897. 



2218. One and one-half miles northwest of Belvidere, 

 from No. 3 ot Hill's section; collected by Ward and Gould, 

 1897. 



2219. Same as 773. Stokes Hill. 100 yards south of the 

 National Corral: collected by Ward and Gould, 1S97. 



2220. Stokes Hill, the most northeasterly of Hill's locali- 

 ties; collected by Gould. 1897. 



2221. Thompson Creek near the flume. 2 miles north- 

 west of Bel\-idere; collected by Ward and Gould, 1897. 



2222. Champion (Wildcat) Draw, three-fourths mile 

 south of Behddere; collected by Ward, Gould, and White, 

 1897. 



2223. Same locality and collectors as 2222, from the 

 ■ ' T^anphier shales. " 



2224. Near Medicine Lodge River. 2 miles west of Bel- 

 videre (original locality of Ward and Vaughan in 1896); 

 collected by Ward and Gould. 



2224. Champion (Wildcat) Draw, right (east) branch, in 

 " Lanphier' shales, " half a mile south of Behidere; col- 

 lected by Ward and Gould, 1897. 



222.5. One mile southwest of Belvidere, in a draw ("Lan- 

 phier shales" ); collected by Ward and Gould, 1897. 



2226. About 2J miles due west of Belvidere (fern bed of 

 1896) ; collected by Ward aud Gould, 1897. 



2227. Hills between Spring Creek and Soldier, 4 miles 

 northeast of Belvidere; collected by Ward and Gould, 1897. 



2228. Champion (Wildcat) Draw, right (east) branch, 

 "Lanphier shales," half a mile south of Behidere; col- 

 lected by Ward and Gould, 1897. 



2229. Left bank of middle branch of Champion (Wild- 

 cat) Draw, half a mile south of Belvidere; collected by 

 Ward and Gould, 1897. 



2230. Draws north of Belvidere ("Lanphier shales"); 

 collected by Ward and Gould, 1897. 



2231. Right bank of middle branch of Champion (Wild- 

 cat) Draw, half a mile south of Belvidere; collected by 

 Ward and Gould, 1897. 



2232. Osage Rock at Belvidere, "Stokes sandstone" 

 below the so-called Champion shell bed; collected by 

 Ward and Gould, 1897. 



2233. First draw west of Champion (Wildcat) Draw, 

 half a mile south of Belvidere; collected by Ward and 

 Gould, 1S97. 



740.5. Wildcat Draw, near Belvidere; collected by 

 W. T. Lee, 1919. 



7406. Osage Rock, near Belvidere; collected by W. T. 

 Lee. 1919. 



CHARACTER OF THE FLORA. 



The flora of the Cheyenne sandstone as dis- 

 closed in the present study numbers but 23 

 species. It comprises four ferns representing 

 the families Polypodiaceae and Gleicheniaceac, 

 and all four are representatives of widely 



