96 IOWA ACADEMY OF SCIENCES. 



tion purposes, and is shipped into many states. The stratum 

 has been traced from southeastern Nebraska, where it passes 

 beneath the Cretaceous, entirely across Kansas, into Okla- 

 homa. It often forms a noticeable topographic feature. 



SYNONYMIC LIST. 



Alma stone, Prosser. (Bull. Geol. Soc. America, Vol. VI, p. 44, 1894.) 

 A local quarry name used in Wabaunsee county, Kansas, for the Cotton- 

 wood limestone. 



Altamont limestone, Adams. (Univ. Geol. Sur. Kansas, Vol. I, p. 22, 

 1896.) Applied to a thin stratum, in southern Kansas, lying in the Marais 

 des Cygnes shales. 



Altoona limestone, Haworth and f iatt. (Kansas Univ. Quart., Vol. II, 

 p. 117, 1894.) Not defined; but name used for a part of Bethany. 



Americus limestone. Kirk. (Univ. Geol. Sur. Kansas, Vol. I, p. 80, 

 1896.) One of the thin, unimportant, double limestone bands, apparently 

 lying in the lower part of the Atchison (Wabaunsee) formation, in east- 

 central Kansas. 



Andrew shale, Keyes. (American Geologist, Vol. XXIII, p. 306, 1899.) 

 Incidentally introduced to designate the upper shale member of the 

 Lawrence, along the Missouri river, in Andrew county, Missouri. 



Appanoose beds, Bain. (Iowa Geol. Sur.,Vol.V, p. 378, 1896.) Proposed for 

 shales, in Appanoose county, in southeastern Iowa. It includes the Henri- 

 etta and the major part, if not all, of the Marais des Cygnes. 



Atchison county group, Broadhead. (Geol. Sur. Missouri, Iron Ores 

 and Coal Fields, pt. ii, p. 28, and section p. 379, 1873.) Corresponds almost 

 exactly to the Wabaunsee of Kansas. Applied to the highest beds of the 

 coal measures in the northwest corner of Missouri. The top and base were 

 not clearly defined originally with reference to other sections. It is now 

 known to represent practically the shales lying between the Forbes and 

 Cottonwood limestones. 



Atchison shales, Keyes. (American Geologist, Vol. XXIII, p. 309, 

 1899.) Title derived from Broadhead's Atchison county group, which 

 includes essentially what was called recently the Wabaunsee formation. 

 It refers to the uppermost shale terrane of the Missourian series. 



Auburn shale, Beede. (Trans. Kansas Acad. Sci., Vol. XV, p. 30, 1898.) 

 A term given to a thin fossiliferous bed in the middle Wabaunsee 

 (Atchison), in Shawnee county, Kansas. 



Benedict limestone, Haworth and Piatt. (Kansas Univ. Quart., Vol. II, 

 p. 116, 1894.) Not defined, but term used for lola— " the Benedict-Iola 

 system." 



Bethany Falls limestone, Broadhead. (Trans. St. Louis Acad. Sci., 

 Vol. II, p. 311, 1862.) Applied to the main body of limestones forming the 

 basal terrane of the Missourian series. 



Bethany limestone, Keyes. (American Jour. Sci., (3), Vol. L, p. 243, 

 1895.) Proposed for the basal limestone terrane of the Missourian series. 

 A slight modification in meaning of Broadhead's term Bethany Falls lime- 

 stone. 



