Original: Californosaurus perrini ( ` Perrin 's California lizard ' ) was an ichthyosaur , an extinct fish-like marine reptile , from the Lower Hosselkus Limestone ( Carnian , Late Triassic ) of California .
Simplified: Californosaurus ( meaning '' California lizard '' ) was an ichthyosaur , an extinct water-dwelling reptile that lived during the time of the dinosaurs .