The discovery of fossils assigned to the genus Megalolamna in 2016 led to a re-evaluation of Otodus , which concluded that it is paraphyletic , that is , it consists of a last common ancestor .
Otodus does not include all of Otodus ' descendants .
The discovery of fossils assigned to the genus Megalolamna in 2016 led to a re-evaluation of Otodus , which concluded that it is paraphyletic , that is , it consists of a last common ancestor but it does not include all of its descendants .