6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 148 



Thickness 

 Feet 



pebble conglomerate. At the base some thin beds alternating with 



shale. Very sharp contact with overlying shale 156 



Collection in top few inches (cnn/1) : 



Blountia arcuosa r 



Blountia montanensis r 



Coosia alethes c 



Coosia robusta r 



Coosia, sp. undet. r 



Crepicephalus cf. convergens r 



Kingstonia inflata c 



Maryvillia arion c 



Meteoraspis mutica r 



Terranovella dorsalis r 



Trier epic ephalus thoosa c 



Collection from loose blocks in lower third of 

 interval (cnk/3) : 



Blountia alexas r 



Dreshachia amata r 



Kingstonia inflata c 



1. Shale : finely fissile, green or tan, with a few siltstone beds in upper- 



most portion. In the lower 15 feet a few lenses of silty or crys- 

 talline limestone ^^^ 



Collections in lower 15 feet both in shale and 

 limestone lenses (cne/1, cne/2) : 



Genevievella, sp. undet. r 



Kormagnostus simplex c 



Norwoodella saffordi c 



Total thickness of Nolichucky formation 633 



Maryville formation 

 3. Dolomite and limestone: massive, gray, gray-weathering dolomite in 

 lower part, grading upward to massive, gray, more coarsely crys- 

 talline or oolitic limestone. Fossile not rare in top 30 feet, more 



common in top 10 feet 185 



Collections made at various places (cnc/2 to cnc/5) : 



Hyolithes, sp. undet. c 



Bonneterrina appalachia c 



Coenaspis spectabilis rr 



Coosella andreas r 



Genevievella, sp. undet. r 



Holcacephalus praecursor r 



Kormagnostus simplex c 



Menomonia tuberculata r 



Menomonia, sp. undet. r 



Modocia crassimarginata c 



Modocia dubia c 



Modocia ? agatho r 



Norwoodia, sp. undet. r 



Tricrepicephalus, sp. undet. c 



2. Dolomite : very light gray, weathering almost white 67 



1. Dolomite : gray, weathering tan or dark gray 740 



Total thickness of Maryville formation 992 



