BEKDK AND ROGERS : FAUNAL STUDIES, IV. 385 



ELMDALE FORMATION. 



The following is a rough section measured rapidly for the 

 purpose of assigning definite horizons for the fossils collected : 



Feet. Inches. 



22. Limestone ( Neva) 4 -)- 



21. Shales 8 



20. Impure limestone 1 6 



19. Shale 3 8 



18. Slabby limestone 5 



17. Blue, shaly limestone 2 4 



16. Hard, calcareous shale 5 



15. Slabby limestone 5 



14. Olive shales 7 



13. Blocky stuff 3 



12. Clay with crusty sheets 2 



11. Shale 5 



10. Limestone 6 



9. Shales. . . , 2 



8. Clayey limestone 8 



7. Green shales 8 



6. Thinly bedded buff limestone, with crusty seams 3 



5. Olive shales 4 6 



4. Limestone 4 



3. Shales 2 



2. Limestone 1 2 



1. Shale 2 



The lowest number (1) is well up in the formation. The 

 remaining portion is not exposed in place, and, indeed, none 

 of it but the Fmidina zone is exposed at all. No. 1 is the 

 lowest shale, shown in the road just east of the bridge. The 

 formation is considered as running down to the water's 

 edge below the bridge. The rock on which the dam is built 

 is probably the Americus limestone. The Fufmlina horizon 

 is considerably above this, and about an equal amount below 

 the base of the section given. The section is located at the 

 type locality of the formation, on the Cottonwood Falls road 

 at the river bluff east of Elmdale. 



FUSULINA HORIZON. Fistulipora nodulifera Meek. 



Fusulina sp., aa. Meekopora prossseri Ulrich. 



Lophophyllum profundum E. & H. Rhombopora sp. 



Crinoid spines, two species. Septopora biserialis (Swallow). 



Archaeocidaris spinoclavata M. & W. Chonetes glaber Geinitz. 



triserrata Meek. granulifer Owen. 



two species. Hustedia mormoni (Marcou). 



Fenestella sp. Productus sp. 



