Hi all. This tooth (about 2 cm) is advertised as Rugops and I have seen some similar teeth online with the same id. I am pretty sure that that is not what this is as it does not look Abelisaurid at all, but I have no idea what it could be. Especially the distal edge seems pretty weird to me (like it is a double edge), although these pictures from the seller are not great. The mesial edge does seem to be serrated. Is this even a theropod tooth? Thanks!