I'm sorry, but what are the tests that show it to be something OTHER than a basking shark?
The only "evidence" that it is a plesiosaur is that it's rough outline is something like that of a plesiosaur. That's it. And in fact, that's evidence AGAINST, since the proportions are wrong.
And that ain't no head on a neck, it's a lump on the end of a non-jointed, stiff "bar".
Persistance of the idea that this is a plesiosaur isn't even speculation, it is simply irrational. It DOESN'T EVEN LOOK LIKE A PLESIOSAUR, any more than a dog "looks like" a gazelle - same rough configuration, that's all.
quote:
"who's to say they don't match that of a Plesiosaur? "
Not even creationists would claim close bio-chemical similarities between these groups, which are very clearly very different "kinds" (in the intuitive sense used by Creationists).