Saurocetes gigas

Saurocetes gigas is an extinct river dolphin from South America and the second described species of the genus Saurocetes, alongside Saurocetes argentinus. The Paleobiology Database credits the name to Cozzuol in 1988, in parentheses because it was first described in another genus, and records a single fossil occurrence dated to between the Tortonian and Zanclean ages, roughly 8 million to 5 million years ago. Like the rest of the genus it is known only from fragmentary material such as isolated teeth and pieces of the rostrum and mandible, and the genus is usually placed in the river dolphin family Iniidae although its exact relationships remain unsettled.