Thoughts on this, please? It's sold as Pliosaur tooth from Faringdon, Oxfordshire--Kimmeridge Clay. 13mm long.
I have my doubts because most Pliosaur teeth that I see for sale have quite thick, distinct striations that this lacks. But of course, it could be a different type of pliosaur. Or I could be entirely wrong that they usually have thick striations.. Anyway, any thoughts would be most welcome.