Hueneosauria
The Hueneosauria are a group of Ichthyosauria, living during the Mesozoic. In 2000, Michael Werner Maisch and Andreas Matzke defined a node clade Hueneosauria as the group consisting of the last common ancestor of "Mixosaurus cornalianus" and "Ophthalmosaurus icenicus"; and all of its descendants. The clade is named after Friedrich von Huene, a German paleontologist who was a leading ichthyosaur expert in the early twentieth century. The Hueneosauria contain the more derived ichthyosaurs, which have the morphology of a fish. The group originated in the early Triassic and became extinct during the Cretaceous.