PROSSER: UPPER CARBONIFEROUS OF SOUTHERN KANSAS. rig 
No. Feet. 
2. Buff, fairly massive limestone, which has a cellular 15-35 * 
layer near the center of the stratum that contains 
numerous specimens of Bakevellia parva M. and H. 
and an occasional specimen of Myalina aviculoides M. 
and H.(?), and Nautilus eccentricus M. and H.(?), 
both of the latter imperfectly preserved. 
Wi COVELed To level Oi An eAneas (HiVeLNinwii jl. dlrs ae aOtao 
Conclusion. 
It is thought that the above sections will give some idea of the 
interesting Upper Carboniferous and Permian formations in south- 
ern Kansas which are worthy of careful study. On correlating 
them with the typical Permian and Upper Carboniferous formations 
of central Kansas it is found that in general there is a close agree- 
ment between the different zones of the several formations, except 
in the case of the Cottonwood formation. The abundant fauna of 
the lower Cottonwood shales was not found in these sections, and 
the horizon of the Cottonwood limestone is in some doubt. How- 
ever, a more careful study of the region where the Cottonwood 
formation is to be expected may remove this apparent difference, 
since in two of the general sections’ studied its horizon seems to 
have been covered. 
To the south, in Oklahoma, scarcely anything has been published 
about the geology of the Upper Carboniferous and Lower Permian, 
and it is a region which will probably afford us most interesting 
information when it is thoroughly studied. This investigation 
should be continued across Oklahoma to northern Texas at the 
earliest opportunity, in order to make it possible to correlate pre- 
cisely the Kansas with the Texas Permian. Also, as the writer has 
stated elsewhere,! this work is necessary before a decision can be 
reached as to whether the Red-beds or Cimarron series of southern 
Kansas and northern Oklahoma should be correlated with the 
Permian or the Triassic. 
| Univ. Geol. Surv. Kans., vol. ii, p. 9. 
