CALLAWAY LIMESTONE. 25 



way County. In several places abundant fossils of this formation 

 have been obtained from strata having lithological characters 

 not very unlike the beds of the eastern Ozark region referred to 

 the same age." 



Greger 1 called attention to K eyes' misuse of the term as 

 follows: "If the writer (Keyes) means to apply the name 

 Callaway limestone to the strata 'having their most typical 

 development in Callaway county' he would likewise include 

 beds in Perry and Cape Girardeau counties, which to our knowl- 

 edge contain an entirely distinct assemblage of fossils, a fauna 

 in fact intimately related to the southern Illinois Devonian." 



The first mention of Devonian formations in Missouri was 

 made by Owen 2 in 1852 as follows: "In Missouri this formation 

 (Devonian of the same age. as in Iowa) was traced, reappearing 

 for a very limited space in the valley of the Auxvasse in Callaway 

 County, skirting for a short distance one of the southern prornon- 

 tories of the Iowa and Missouri coal-field, in close proximity 

 to the great uplift of magnesian limestone, of Silurian date, in 

 the same vicinity. It has, probably, a considerably greater 

 range in this locality than here ascertained and laid down by 

 me. 



In 1855 Swallow 3 mentioned the occurrence of rocks that 

 are undoubtedly Callaway in Callaway County on Cedar Creek. 

 He called these rocks Onondaga. In the same year Meek 4 

 identified rocks of the Callaway in Moniteau County and called 

 them Onondaga, with no differentation from the Cooper lime- 

 stone on which they rest. 



In 1860 Swallow 5 described several species of fossils from 

 the Callaway and Snyder Creek of Callaway County. No 

 illustrations accompanied the descriptions and as the types were 

 later destroyed by fire when the museum of the University of 

 Missouri burned, many of Swallow's names cannot be used. 



In 1873 Broadhead 6 described the Devonian of Warren 

 County as quoted in the description of the Mineola on page 15. 

 He recognized the presence of more than one formation but 

 identified the Callaway as lower Devonian in some places and 

 as Hamilton in others, and did not differentiate between Mineola 



'Am. Jour. Sci., vol. XXVII, pp. 374-375, May, 1909. 



2 Geol. Surv. of Wis., la., and Minn., 1852, p. 81. 



•Geol. Surv. Mo., I and II, Reports, p. 107. 



«Ibid., pp. 103-105. 



'St. Louis Acad. Sci., vol. I, pp. 635-660. 



•Geol. Surv. Mo., 1855-71, pp. 46-48. 



