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Re: Weishampel et al.'s Formation Dates in The Dinosauria

Thank you for the quick reply, Dr. Holtz! I wish I could use stratigraphic 
journals as my source, but I don't have the time to track down information for 
all the formations I have to deal with one by one. I guess I'll be taking the 
oldest age and the youngest age given by Weishampel et al. as the start and end 
dates that the formation was deposited, unless someone out there thinks it 
would be unwise.