Euoplo

[Jeffrey Martz <martz@holly.ColoState.EDU>]

     Could someone explain the differences in the ecosystems of the Judith 
River, Two Medicine, Oldfman, and Horseshoe Canyon 
Formations?  I known that Judith River is a floodplain envirnoment, Two 
Medicine is a pretty much contemporaneous upland environment, and Horshoe 
Canyon is Early Maastrichtian, but thats about it.  I know nothing about 
the Oldman Formation.  Also, possibly a few words on faunal differences?  
     Also, AMNH 5266 (identified as a juvinile Euoplocephalus from 
the Horseshoe canyon formation of Alberta) has apparently not been 
reffered to E.tutus.  Should it be called "Euoplocephalus sp."?  How many 
of the specimens attributed to the genus can be confidently assigned a 
species?
     The assistance of subscribers to this list has been invaluble, and I 
greatly appreciate it.

LN Jeff