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Re: Dinosaurs of Minnesota

John Schneiderman wrote (1/12/97; 2:26p):

>According to my sources Dr. Robert Sloan of the University of 
>Minnesota, discovered and described what he believed to be a single 
>tail vertebrate from a primitive hadrosaur near Springfield, Minnesota.

>He said that the vertebrate was discovered weathering out of marine
>Carlile Shale (early Campanian) of the Late Cretaceous.  

The Carlile Shale is Turonian, not Campanian; probably middle Turonian.  
Turonian is older than most, but not all hadrosaurs, so "primitive" 
sounds right.

Norman R. King                                       tel:  (812) 464-1794
Department of Geosciences                            fax:  (812) 464-1960
University of Southern Indiana
8600 University Blvd.
Evansville, IN 47712                      e-mail:  nking.ucs@smtp.usi.edu