A gigantic bizarre marine turtle (Testudines: Chelonioidea) from the Middle Campanian (Late Cretaceous) of South-western Europe

Abstract Marine turtles were common in the subtropical Upper Cretaceous epi-continental seas that once washed the coasts of the ancient European archipelago.But unlike its contemporaneous faunas from North America, in Europe no taxon surpassed the 1.5 m shell-length.Here, the remains of a new large marine turtle, Leviathanochelys aenigmatica gen.et

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