178 KANSAS UNIVERSITY SCIENCE BULLETIN. 



Aricvlopecten maccoyi Meek and Hayden. 



Aviculopecten occidentalis (Shumard) Meek and Hayden. 



Edmondia sp. 



Limopteria marian (White) Beede. 



Myalina perattenuata Meek and Hayden. 



Myalina swallowi McChesney. 



Pseiidomonotis hawni Meek and Hayden. 



P^eudomonotis cf. kansasensis Beede. 



Schizodus sp. 



ScJu'zodus sp. 



Gastropod cast. 



Loxonema sp. 



Pleurotomaria perhumerosa Meek. 



36. Owing to lack of detailed study of the rocks from the 

 last described to the Cottonwood limestone, it will be necessary 

 to combine the less important strata into groups and mention 

 only the more important. It is a matter of regret that the rocks 

 of this part of the Kansas river section cannot be referred with 

 certainty to the corresponding rocks of the Neosho river and 

 Cottonwood river sections, which have been studied by various 

 geologists. As near as I am able to judge, No. 13 of Bennett's 

 Buffalo Mound section 11 corresponds to the Americus limestone 

 near Emporia. 12 All the rocks between No. 35 and No. 13 of 

 Bennett's Buffalo Mound section are put under No. 36. They 

 consist of an alternation of thin limestones and shales. These 

 shales form a part, at least, of the "Olpe" shales of Dr. Geo. 

 I. Adams (by permission, from his MSS.) 



37. No. 13 of Bennett's Buffalo Mound section. Probably 

 is the equivalent of the Americus limestone before mentioned. 



38. Elmdale Formation. Prosser and Beede, MSS. Shales 

 with occasional thin limestones, quite fossiliferous in the lower 

 portion. This is probably the same horizon as No. 2 and No. 3, 

 except the limestone at the top, of Prosser's Manhattan sec- 

 tion. 13 It is also, in all probability, the same horizon as No. 8 

 of my section on the South Fork of the Black Vermillion river. 14 



11. Ibid., p. 120. 



12. Ibid., p. 80. See, also, Smith, Bull. Geol. Lyon Co. (Kans.), Emporia, 1901. 



13. Bull. Geol. Soc. Amer., VI, p. 33. 



14. Kans. Univ. Quart., IX, p. 193, 1901. ( For July, 1900.) 



