Re: Taxonomic Status

[Danvarner@aol.com]

In a message dated 12/9/01 8:46:52 AM Pacific Standard Time, 
j_mallon@hotmail.com writes:


<< To paraphrase, 
there are three specimens from western Canada (one of which is just a 
"posterior parietal bar") that show _C. irvinensis_ as having had an oddly 
"squared off" frill and comparatively smaller parietal fenestrae than other 
members of its genus.  I'm sure there are more distinctions that can be 
made, but that's as far as I'm willing to go without having seen the paper. >>


       If I remember correctly, I believe _C. irvinensis_ is also younger 
stratigraphically. DV