44 C. S. PROSSER — PERMO-CARBONIPEROUS AND PERMIAN ROCKS. 



It seems probable that the above stratum is the same as the bluish 

 gray, fossiliferous limestone described on Buffalo mound, although the 

 stratum lias not yet been carefully traced from the mound to McFarland. 



ALMA SECTION. 



Its Thickness and Fauna. — At Alma, 4 miles southwest of McFarland 

 and 18 miles southeast of Manhattan, on the east bank of Mill creek, is 

 a section of the same rocks as those exposed in the bluffs of the Kansas 

 river near Manhattan. The following section refers to that part of the 

 bluff on which is the quarry of the " Sunflower cement works," capped 

 by an exposure of the Alma massive limestone : 



Inches. Feet. 



12. Thin limestone but a few inches beneath the soil 6 = 181 



Feet. Feet. 



11. Yellowish shale, with concretions in the upper part and abundant 10 = 180^ 



fossils in the lower portion. 

 10. Light 5^ellowish gray, massive limestone, locally called the "Alma 5^ = 170 J 



stone." 



9. Covered slope 40 =165 



8. Argillaceous, thin bedded limestone, with a hard, irregular lime- 10 ^= 125 



stone at the base. 

 7. Slope showing outcrops of shaly limestone and shales, but mainly 18 = 115 



covered. In the shaly limestone or calcareous shales are speci- 

 mens of Fusulina cylindrica, Fischer. 



6. Massive grayish limestone at top of cement quarry 2 = 97 



5. Olive shale , 7 = 95 



4. Drab limestones, w^ith one layer of drab shale. The limestones are 5J = 88 



used for cement and known as numbers 1 to 3 of the cement 



quarry. 

 3. Yellowish, very friable chalk-like limestone, number 4 of the 5 = 82^ 



cement quarry. 

 2. Bluish and yellowish white shale, the lower containing concretions 7} = 77^ 

 1. Covered slope to Mill creek 70 = 70 



From the lower part of the yellow shales, number 11 of the section, 

 the following species were obtained : 



1. Chonetes granulifera, Owen, (aa) 



2. Athyris subtilita (Hall) Newb. (a) 



3. Productus semireticidatus (Martin) de Koninck. (c) 



4. Meekella striato-costata (Cox) White and St. John, (rr) 



5. Derhya crassa (M. and H.) H. and C. (?). (rr) 

 G. Rhomhopora lepidodendroides, Meek, {rr) 



7. Fusulina cylindrica, Fischer, {rr) 



8. Archxocidaris sp. (c) 



9. Crinoid stems, {rr) 



Correlation of the Alma with the Manhattan Stone. — The massive lime- 

 stone (number 10) below the yellowish shales, called the Alma stone, is 



