340 R. S. Lull — Mammals and Horned Dinosaurs. 



beds. Productive ant hills and the remains of dinosaurs were 

 found at a level some 300 feet higher, which is in agreement 

 with the statement by Stanton {vide supra, p. 337). 

 Doneghy's section follows : 



FEET 



Gray sandstone, poor or no outcrops, surface 



slope approximating that of beds ± 10° W. .. 125 to 150 

 Massive hard gray sandstone, often capped by 

 huge concretions, productive ant hills, prob- 

 able level of Quarry No. 2 (Skull No. 1) 9 to 10 



Lignite, dinosaur bones at top 18 



Buff concretionary sandstone, ? possible limit of 



Fox Hills 1 



White concretionary sandstone 8 to 9 



White sandstone with interbedded lenses of shale 

 and lignite, massive in appearance but 

 weathering brings out extremely irregular 

 cross-bedding, concretions scarce, poor out- 

 crops, ant hills barren 75 to 100 



Hard red sandstone, cross-bedded, jointed, 



slightly flexed 3 40Q 



Massive gray sandstone, bedding like above 12 



Talus of soft sandstone, shale and lignite, no out- 

 crop 45 to 50 



Hard sandstone, much cross bedded but regularly 



bedded 3 



Soft sandstone, poor outcrop 7 



Hard red bed, massive in appearance, but seems 

 to weather into thin dirty brown slabs. Un- 

 weathered layers show no sign of bedding, 



about 2 



Red beds, irregular bedding 2 



Hard buff massive sandstone... 10 



Thin-bedded, even-bedded, hard sandstone 4 



Sandstone 12 _ 0f> 



Alternating soft shale and lignite 20 to 25 



Massive buff sandstone 20 



Hard buff concretionary sandstone 10 



Alternating soft buff sandstone and red shale, 

 with plant and bone remains, beds average 1 



foot in thickness, about 16 



Lignite bed, about 4 



Resistant pink concretionary sandstone 0£ 



*White to gray massive sandstone 15 to 20 on „ 



Hard red sandstone 1 



Sandstone in alternating beds, 6 inches to 10 feet, 



occasional hard and concretionary layers 75 to 79 



Red sandstone, about 2 



Thick-bedded sandstone 15 to 18 



Soft alternating shales and sandstones in beds 100 



1 to 5 inches thick, varicolored 10 



