Catutosaurus is an ophthalmosaurid ichthyosaur from the Late Jurassic Vaca Muerta Formation of Argentina. It contains a single species, Catutosaurus gaspariniae.[1]
The generic name refers to the Los Catutos site. The specific name honours Zulma Gasparini.
The holotype is MOZ-PV-1854, a skull, lower jaws and front torso. Referred are specimina MOZ-PV-103, a skull with lower jaws, and MOZ-PV-7260, a set of snout fragments.