Eternauta

Eternauta patagonica is an extinct species of ophthalmosaurid ichthyosaurian known from the Late Jurassic Vaca Muerta Formation of Argentina. E. patagonica is the only species in the genus Eternauta, known from a nearly complete skull with an associated rib and front flipper. The anatomy of the mandible and scleral ring indicate Eternauta had a different feeding strategy compared to other ichthyosaurs it coexisted with.