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In a message dated 5/18/2000 7:47:02 AM Pacific Daylight Time, 
darren.naish@port.ac.uk writes:

> Because we are 
>  now thinking that _Neovenator_ is a carcharodontosaurid, and because 
>  its teeth lack wrinkled enamel, this character is not true for all member 
>  of the group.

_Acrocanthosaurus_ also lacks wrinkled enamel.  Classic carcharodontosaur 
enamel wrinkles, which extend all the way across both faces of the tooth, 
appears to be limited at this point to _Carcharodontosaurus_ and 

Nick P.