Hello,
I'm more hopeful about this one. It looks different than the other verts that are for sale which are usually misidentified plesiosaur/pliosaur verts. Plus, while it has a couple of holes at the bottom--they are nowhere near as distinct as others.
It is from Abingdon, Kimmeridge Clay. Dimensions are 6.5 x 5 x 7
Now, I haven't seen Sauropod verts listed for sale which are this shape--which half makes me think it's something else entirely. But, then again, most sauropod verts from the UK are misidentified so I can't really judge with others listed for sale.
Anyway, thanks for taking a look.