M₃O₁S₁A₁S₁A₁U₁R₁U₁S₁

12 points

MOSASAURUS is validvalid

a type of dinosaur [n MOSASAURUSES]

133,738 of 196,601 in NWL2023·also valid in CSW24

a gigantic Cretaceous fossil pythonomorph reptile, also MOSASAUR [n MOSASAURI]

152,125 of 280,887 in CSW24·also valid in NWL2023