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Re: Spinosaurus teeth

Another point to be made...

other dinosaurs living during the time of Spinosaurus also developed 
sails, and were all Gondwanian.

in the Late Cretaceous, sail development would be attempted again 
amoungst the Hadrosaurs...or was this just a continuation of Ouranosaurus.

---John Schneiderman (dino@revelation.unomaha.edu)