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Re: Scandinavian dinos!!!....aaaaand some spinosaur stuff....
In a message dated 97-10-07 07:07:34 EDT, you write:
<< Yeah, but the Spinosaurus lower jaw, is similar to many, many other
theropods jaws too!!
I know!! That's my point. I don't think Baryonyx walkeri and Spinosaurus
aegipticus are extremely similar!
And I believe that some other spinosaurs had back sails...
possibly Altispinax dunkeri and Siamosaurus suteethorni.
I'm not saying that sails were common to the group, however, it was probably
a climactic factor, because a hadrosaur from the same Egyptian deposits as
Spinosaurus had a sail similar to Spinosaurus's.
And I'm also not saying that Baryonyx and Spinosaurus weren't the slight bit
related, because they were. Baryonyx probably led to later Cretaceous
predators like Spinosaurus and Spinosaurus had the sail because of some
climactic feature during late Cretaceous in Egypt.