Wikipedia
Macrocephalochelys
Macrocephalochelys is an extinct genus of turtles belonging in the family Chelydridae. It was first described from a partial skull from the Pliocene found in the Ukraine by Piboplichko and Taraschchuk in 1960. It was assigned to the family Chelydridae by R. L. Carroll in 1988 although it had been hypothesised to belong in Chelydridae by Chkhikvadze in 1971.