PROSSER. | Cretaceous.—The Dakota Sandstone. 189 
Feet. 
six miles above Grand Saline river. Probably local, 
GHIUCKMESSRSEE MEAD Olea ents asain e ore eh arereie lees P1157 
The locality given for No. 4 of the above section is probably the 
bluifs to the southeast of the present city of Salina. The rocks 
below No. 4—No. 5 of this section—were regarded by Meek and 
Hayden as probably belonging in the Permian, but ‘between No. 5, 
and the Cretaceous above, there is still a rather extensive series 
of beds in which we found no organic remains; these may be 
Jurassic or Triassic, or both, though as we have elsewhere sug- 
gested, we rather incline to the opinion that they may prove to 
belong to the former.’ 
Mr. Beede has sent me typical Mentor fossils collected on the 
south side of the Smoky Hill river in the “Natural ‘corral’ on 
section 5, South Sharps Creek township, McPherson county, which 
he says were in the upper part of a stratum of hard, brownish 
sandstone, 7 feet thick. Mr. Beede also reported Mentor shells 
from farther south in McPherson county, three miles southeast of 
Windom. Mr. W. N. Logan has also sent me Mentor fossils from the 
“Natural corral’ in McPherson county, supposed to be the same 
locality studied by Mr. Beede, among which are specimens of 
Trigonia Hmoryit Con. Mr. Logan wrote me that he “had found 
fossils in the upper and middle horizons of the Dakota which 
seem to be identical with the Mentor fossils.” From a sandstone 
at the extreme upper limit of the Dakota near Beloit, Mr. Logan 
has also collected Lamellibranch shells that have not been iden- 
tified specifically, and may possibly belong in a different fauna 
from that of the Mentor. Professor Jones reported shells from 
wells near Brookville, that were from 50 to 60 feet below the leaf- 
bearing Dakota. Again, on the Townsend place, thirteen miles 
southeast of Salina are Mentor fossils which the Professor thinks 
occur above a leaf-bearing stratum. It is also reported that Prof. 
S. C. Mason of the Kansas State Agricultural College found fossil 
shells in the Dakota sandstone near Tescot in the southwestern 
part of Ottawa county; while Professor Mudge in his “Geology of 
1 Proc. Acad. Nat. Sci., Phil., Vol. XI, 1859, p. 16. 
2 Ibid., p. 21. 
