78 KANSAS ACADEMY OF SCIENCE. 
Myalina swallovi McChesney, r 
Allorisma granosa (Shumard) Meek, r. 
Allorisma subecuneata Meek and Hayden, rr. 
Allorisma sp., rr. 
Monopteria marian White, rr. 
Aviculopecten winchelli Meek ??, rr. 
Aviculopecten sp., rr. 
Entolium aviculatum (Swallow) Meek, c. 
Schizodus curtus Meek and Worthen, ¢c 
Schizodus rossicus DeVerne?, rr. 
Pinna peracuta Shumard, r. 
Macrodon tenuistriatus Meek and Worthen, rr. 
Macrodon sp., rr. 
Cf. Murchisonia marcouana Geinitz, rr. 
Aclis swalloviana Meek, rr. 
Bellerophon carbonarius Cox, rr. 
Orthoceras sp., rr. 
Phillipsia major Shumard ?, rr. 
Phillipsia scitula Meek and Worthen, rr. 
Peripristis semicircularis Meek and Worthen, rr. 
Petalodus destructor Newberry and Worthen, rr. 
Crinoids are occasionally found in this limestone, but generally too poorly pre- 
served to admit of determination. 
Overlying the Topeka limestone is a series of shales and sandstones. The 
only good exposure of this series near Topeka is at the Topeka vitrified brick 
works, three miles west of the city, where twenty-four feet of them are exposed. 
The lower portion of this exposure is a soft concretionary sandstone, somewhat 
micaceous, over which lie fifteen feet of shales, the lower portion of which is 
arenaceous and sometimes contains plant remains, while the upper part is bluish 
and argillaceous. Over these are a few feet of yellowish shales, overlaid by the 
Topeka-Osage coal, which varies from ten to sixteen inches in thickness. North 
of the Kilmer siding (about ten miles northeast of Topeka) the Topeka limestone 
and coal can both be located on the east slope of the hill on the east and west 
road. This, taken in connection with the section about a half-mile north of 
where the road crosses a little tributary to the Big Muddy, makes the following 
section: 
Thickness. Total. 
7. Covered slope, several feet. ft. in. ft. ine 
6. Rotten clayey limestone....... ......... Pe Stee te oe Li OS 74 
5, Oliveite brownish ahales. 4552.2 so ke ee eee eee ee 4 0 72: 10 
4.°(@lrveiand: brownish BHaIeN; 5 ose ee ee oe lee ee 10, 40 68 10 
3. Hard, black, arenaceous shales and coal................... 10 58 10 
De SSRI BSE S oct cro CM hdc aR cola Ae ee cr 5d 0 58 «600 
1. Topeka limestone exposed in the bed of the creek, of the 
same characteristic appearance and fossils as near To- 
OMA Se ie ode alas As > whee Sines & weak SL tee aur8 5 a | 
Next above these shales, overlying the Topeka limestone, is the Osage coal. 
This coal is not in one continuous layer, but in a series of beds of considerable 
extent lying in one remarkably uniform horizon, varying but few feet vertically 
in many miles. The Topeka bed is probably best developed along a line from a 
point four miles west of Topeka in a southeasterly direction to the Capital coal- 
mine, three miles nearly south of Topeka. The average thickness is about, or 
a little over, a foot in this part of the bed. 
Above the coal lie the Shunganunga shales, whieh at the Capital coal-mine 
