Hi there this little tooth is being advertised as a Nuthetes Destructor from the Dromeasauridae family
Location: France - Champblanc / Cherves
Size: 1.5cm
I have my doubts about the ID as ND teeth are known for a depression in their crown (see below) although this tooth does have serrations.
The person's reasoning for ID'ing the tooth is that the seller is a paleontologist ! 100% guaranteed. I don't really think that is a valid reason (a few months ago I may have said this was as I would take anybody's word for anything but now that I have been collecting teeth for less than a year I don't think it is!) Even paleontologists can get ID'ing wrong)
Please let me know your thoughts, thanks everyone.