82 The American Geologist. August, 1893 
fossils have been round in the Devonian of the eastern and 
southern parts <»!' Callaway county. About 19 feel of Lime- 
stone containing Fa msitc.s alpinensis, appear at the water's 
edge at Providence, Boone county. Further up the river no 
Devonian is found. Near Otterville, in ( Jooper, similar fossils 
have been also found. This is the farthest limit west and 
southwest of the Devonian in Missouri. 
Lower Carboniferous ok Mississippian Series ok Winchell. 
i Chester. 
Genevieve Group. . . -j St. Louis, 
( Warsaw. 
Mississippian , Q Q \ ^ 6 °'f uk l 
series. ° l I Burlington. 
i Chouteau limestone, 
Chouteau Group. . . . -j Vermicular sandstone, 
( Lithographic limestone. 
The Chouteau includes Chouteau limestone 100 feet. Ver- 
micular sandstone and shales 75, and Lithographic limestone 
55 feet. Some of the early geologists assigned what we have 
designated as the Chouteau to the Chemung of the New York 
geologists, basing their conclusions upon the presence of cer- 
tain fossils which seemed to be Devonian. But further 
examination developing many Carboniferous forms, this group 
is now considered as belonging at the base of the Lower Car- 
boniferous. Its representative or near ally is the Kinderhook 
of Illinois, and probably the Knobstone of Indiana and Ken- 
tucky, the Marshall group of Michigan, the Waverly of Ohio 
and probably part of the Vespertine of West Virginia. 
We do sometimes observe a slight mingling of fossils near 
the junction of the Burlington and Chouteau, as in Green and 
Christian and elsewhere, but the lithological appearances will 
have to be more particularly considered. The lower Burling- 
ton beds are gray and brown, the upper Chouteau shaly blue 
and drab, ami do not contain so many fragments of Crinoidea 
as does the Burlington. The beds of the latter are more often 
made up of crinoidal remains with intermingled shells of 
Brachiopoda. The Burlington beds are also generally trav- 
ersed by stylolite bands. 
The lithographic limestoneis 55 feet thick at Louisiana and 
consists chiefly of thin layers of dove-colored, compact 
limestone, with a conchoidal fracture. The outcrops in the 
Mississippi bluffs include strata which are also exactly like 
