20 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 148 



Dr. Oder measured his section in the road cut, whereas the more 

 interesting fossils were found on the E. shore of the embayment, 

 where the writer measured a partial section. Difficulty was experienced 

 in correlating the road-cut section with the shore section, since the 

 strata could not be accurately traced through the intervening area. 

 However, all the fossils discussed herein were collected by Dr. Oder 

 and the author from the shore beds in unquestionable stratigraphic 

 order. The beds dip 25°-30° S. The section in descending order fol- 

 lows, beginning with the highest Hmestone beds below the dolomite. 



Thickness 

 Feet Inches 



12. Limestone : weathering blue-gray, mostly very massive, at 



top and bottom thin-bedded, in part dolomitic 20 



11. Limestone: very massive, mottled with dolomite, weather- 

 ing to rough surfaces 14 



10. Limestone : thin-bedded, aphanitic, with tan-weathering 



partings, weathering to smooth, blue-gray surfaces 6 



9. Limestone: crystalline, massive, with insoluble stringers 



weathering in relief 18 



8. Shale and thin-bedded limestone 2 



Collection cnr717 (= Oder's coll. No. 2) : 

 Aphelaspis walcotti 

 Blountia mimula 

 *Glaphyraspis declivis c 



*Glaphyraspis oderi c 



7. Limestone : crystalline, massive, weathering blue-gray ; 



basal part weathering to spongy residue 2 6 



6. Limestone: massive, mottled with dolomite, weathering to 

 rough surfaces ; in lower part with regular, insoluble 



stringers 10 



5. Shale, with Hmestone nodules 1 4 



4. Limestone: massive, mottled with dolomite, weathering to 



rough surfaces 6 



3. Shale, with limestone lenses and nodules 8 



Collection cnr/17, 2 feet below top : 

 Aphelaspis, sp. undet. 

 2. Limestone and shale: Hmestone in thin, partly lenticular 



beds ; interval grades eastward to almost pure limestone . . 7 



Collections cnq/17, 2J^ feet above base : 

 * Aphelaspis minor c 



Glaphyraspis ornata r 



1. Limestone: mostly crystalline, massive, with a few thin- 

 bedded intervals. Base of unit forms bottom of ravine 



on lake shore 18 



Collection cnp/17 in thin limestone bed at top : 

 *Aphelaspis transversa c 



Blountia hristolensis c 



Cheilocephalus brevilobus r 



