STRATIGRAPHIC POSITION OF JUDITH RIVER FORMATION 651 
There is, therefore, little, or no doubt as to the beds underlying 
the Belly River series in Canada. On our side of the line, we were 
fortunate enough to see complete sections from the Jurassic up 
into the Fort Union on Fish Creek, where the Belly River beds 
lie above the Eagle sandstones with an intervening alternation of 
sandstones and sandy shales that could not in any way be con- 
founded with the characteristic soft dark shales of the Pierre that 
rest on the horizontal fresh-water badland bed of Belly River age. 
COMPARATIVE SECTIONS SHOWING RELATIVE POSITION OF BELLY 
RIVER AND JUDITH RIVER FORMATIONS 
* CoLorabdo AND WyoMING MOonrTANA 
13 Judith River| Fish Creck | Willow Creck Senge 
astern * udit Iver 1S Tee. lllow Cree. 
Colorado Wyoming Section Section Section 
Upper 
Fort Fort Fort Union | Paskapoo 
8 Union Union 
> | "2 Meeumevean Come eel rss 
3 = | Lower Judith Lance Lance Edmonton 
sO) Ih es | Fort River 
a | . Union 
= (Lance) 
oF = 
9 o 
| 8} Denver _ | Livingston| Absent 
4 | fe 
I 
| Arapahoe 
ei 3 Laramie | Laramie Absent Absent Absent Absent 
o 
6) CS eet A EI a NS ay ea 
m ;| Fox Hills | Fox Hills | Fox Hills | Fox Hills | Absent Fox Hills 
a} 2 
a | 6 ——————_ | — —_—_———— 
s ; : Tae : 3 
Se Pierre Pierre Pierre Pierre Pierre Pierre 
Niobrara F Belly . Belly Belly River | Belly River 
Be iteg River River | Eagle Dunvegan 
2 | "So Eagle Eagle 
Oplee SS ee 
2 Benton Benton Benton Benton Benton Benton 
3 i : palates 
a | 
Sy 3 Dakota Dakota ? Dakota? 
2 Comanche Kootenai | Kootenai? _ | Kootenai 
S| Se 
i Morrison Morrison | Morrison 
