I have often seen teeth for sale labelled as "Liodon anceps" and on occasion "Mosasaurus anceps". My understanding is that the genus is dubious, and I personally suspect most material labelled as Liodon is actually from a species of Prognathodon of some description, but I'm not sure the exact current state and would appreciate any guidance.
Also, should this topic be in the wrong place, my apologies.
Thanks in advance for any information
Othniel