390 
This section possesses a distinct similarity to the upper part of the 
Whitewater section exposed at Richmond, Indiana, in being a very nodular, 
shaly limestone. 
Though similarity in lithology is not a conclusive proof that two 
or more separated sections are parts of the same formation, yet the fact 
that there is a distinct resemblance does tend to lend favor to that 
decision. 
A detailed description of this locality is given in the following section, 
taken from “The Stratigraphy and Paleontology of the Cincinnati Series 
of Indiana.’’* 
SECTION ALONG THE West FORK OF WHITEWATER RIVER AT 
RICHMOND, INDIANA. 
(Number 1 is at the top of this section. ) 
1. Exposures in the bank above Thistlewaite Falls on the 
west fork of Whitewater River, about one and one-quarter miles 
north of the National road bridge across Whitewater River. Thin, 
lumpy limestone. Rhynchotrema dentata (aa). Several species 
of gastropode, including Salpingostoma richmondense (¢). Stro- 
phomena sulcata (r)...... RMON CUS TAI tal Sets cheno eu otasont torheta 8 cra ore nite .- 8 feet. 
2. Layer in the breast of the falls. Heavier layer at the top. 
Limestone. Monticulipora epidermata (¢). Platystrophia acuti- 
lirata senex (c). Homotrypa wortheni............... Mirveper ore ose §6© LeCT 
3. West side of creek just below the falls. Bryozoa (aaa), 
Monticulipora epidermata, etc................... eye eros a” sabe aeeete > oOreer 
4. Just north of the ©. R. & M. R. R. bridge. Thin, shaly 
limestone, Rhynchotrema capax, the highest specimens. Plectam- 
DONITESPRELICCUS, (CEL). ..c.ctoe sere om natale Os ela ShaUeteaNs ieee SES EN rhe -* © Leet. 
5. Just south of the C. R. & M. R. R. bridge. Rhynchotrema 
Ghiochs (EE) Sa5me goose etaers anatase operate cocetistaie baeietere APO PREECE EO Gre er EC .4 ft. 8 in. 
6. About one-eighth of a mile north of the road bridge across 
Lie west; fonk.,, Ptylodictyarplumaria, ‘etGrn.css «sock oaneeee ee ee 5 feet. 
7. A short distance north of the junction of the east and west 
forks of the river. Limestone and intercalated shale. Hallopora, 
very similar to H. rugosa. No specimens of Rhynchotrema dentata 4 feet. 
*Prof. E. R. Cumings. Indiana Dept. Geology and Nat. Resources, 32d Ann. Rept. 1907. 
