This is for those who have read Bullard and Caldwell's "Redescription and Rediagnosis of the Tylosaurine Mosasaur Hainosaurus Pembinensis Nicholls, 1988, as Tylosaurus Pembinensis (Nicholls, 1988)" and Dr. Martin's " A North American Hainosaurus (Squamata: Mosasauridae) from the Late Cretaceous of southern South Dakota.
I think Bullard and Caldwell made some valid points but not enough to prove it's a Tylosaur instead of a Hainosaurus. Anyways, what do you guys think?