1) Ichthyosaur 2) Stenopterygius quadrisicissus 
Stenopterygius was an Ichthyosaur , a dolphin-like reptile about 10 feet (3 m) long and dolphin-like with large eyes. It was from the early-middle Jurassic period in what is now England and Germany. It was not a dinosaur, but another type of extinct reptile . STERNBERG, CHARLES H. A fossil hunter who found many dinosaurs for E.D. Cope, mostly in Al...
[n] - an ichthyosaur of the genus Stenopterygius
Stenopterygius quadrisicissus noun an ichthyosaur of the genus Stenopterygius