Saurocetes argentinus

Saurocetes argentinus is an extinct river dolphin from South America and one of the two described species of the genus Saurocetes. The Paleobiology Database credits the name to Burmeister in 1871, in parentheses because the species was later moved to its present genus, and dates it to between the Tortonian and Messinian ages of the Miocene, roughly 11.6 million to 5.3 million years ago, across four fossil collections. Its remains are fragmentary, mostly isolated teeth and pieces of the snout and lower jaw, and its classification has been unstable: it is usually treated as an iniid, but the genus may be a synonym of Ischyrorhynchus, and the species has a junior synonym in Pontoplanodes obliquus.