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Re: Suchomimus Photos Posted Online



In a message dated 6/30/00 1:57:47 PM EST, dinoland@mailcity.com writes:

<< Just curious, have rosettes similar to this one been seen in other 
spinosaurs or theropods? >>

Such rosettes are apparently a spinosaur apomorphy. All known spinosaurs for 
which the skull is well enough known to tell (e.g., Baryonyx, Suchomimus, 
Spinosaurus [barely], Irritator, Cristatusaurus, Angaturama) had them. They 
seem to resemble the separate, droopy premaxillae of Dilophosaurus and may be 
directly derived from them.