166 THE DEVONIAN OF MISSOURI. 



CHAPTER III 



THE FAUNA AND THE CORRELATION OF THE BAILEY 



LIMESTONE IN THE LITTLE SALINE CREEK AREA 



OF STE. GENEVIEVE COUNTY, MISSOURI,, BY 



V. 0. TANSEY 



The Bailey limestone was named by Ulrich from its exposure 

 at the former Bailey's Landing on the Mississippi River, Perry 

 County, Missouri. Fossils obtained. from it at Bailey's Landing 

 have been described by Meek and Worthen; 1 and its occurrence 

 together with fossils collected from it along the Mississippi 

 River in Jackson and Union Counties, Illinois, and at a point 

 across the river«in Perry County, Missouri, have been noted by 

 Savage. 2 Its occurrence in Ste. Genevieve County, southeastern 

 Missouri is described in a forthcoming report on that county by 

 Stuart Weller. 



Of the 64 or 65 species of fossils from the Bailey limestone 

 in the Little Saline Creek area of Ste. Genevieve County, Mis- 

 souri, 42 of the 49 accurately determined have been described 

 from Lower Devonian strata of other localities. 



That the Bailey limestone of this region is essentially of New 

 Scotland age — based on the New York Helderberg; and that it 

 is related essentially to the New Scotland of Maryland, and to 

 the Coeymans-New Scotland of the Helderberg of New Jersey is 

 evident from the following tables 1 and 2. Table 1 gives the 

 fauna of the Bailey limestone in the Little Saline Creek area, 

 and the occurrence of contained species in New York, New 

 Jersey, Maryland, Tennessee, Oklahoma. Gaspe, Quebec, and 

 Dalhousie, New Brunswick. Table 2 is a numerical summary, 

 based on Table 1, of the species of the Bailey limestone as they 

 occur in New York, New Jersey, and Maryland that brings out 

 the relation of the Bailey limestone to the Helderberg of those 

 states. 



The description of the Bailey limestone in the Little Saline 

 Creek region and of related strata outside of the New York- 

 New Jersey-Maryland area are given in the following table 3 

 while the substantiating faunal data for such relationship is 

 included in tables 1, 2, 4, and 5. Table 4 gives the occurrence in 



"111. Geol. Surv., vol. Ill, 1868. 



•111. Geol. Surv., Bull. 8, pp. 112-113, 1907. 



