Melanosuchus, from Ancient Greek μέλας (mélas), meaning "black", and σούχος (soúkhos), meaning "crocodile", is a genus of caiman. The genus is most commonly referred to as the "Black Caimans". The black caiman of South America is the sole extant (living) species, and is the largest living member of the subfamily Caimaninae, as well as the entire alligator family Alligatoridae.

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