|Named By:||F. de Lapparent de Broin, N. Bardet, M. Amaghzaz & S. Meslouh in 2014|
|Time Period:||Late Cretaceous, 70 Ma|
|Classification:||| Chordata | Reptilia | Testudines ||
Alienochelys ("strange turtle") is an extinct genus of sea turtle known from Maastrichian-aged Cretaceous phosphates in Morocco. Its name comes from the fact that unlike other sea turtles, Alienochelys' jaws are adapted for a powerful crushing pattern, as well as its unusual cranial characteristics. It is a relative of the modern leatherback turtle, as well as the extinct Archelon.