Noun: ichthyosaur 'ik-thee-u,sor
- Extinct marine reptile of the Mesozoic era, with a body shape similar to modern dolphins
"Ichthyosaurs were highly adapted for aquatic life, convergently evolving a shape similar to fish and cetaceans"
Derived forms: ichthyosaurs
Type of: archosaur, archosaurian, archosaurian reptile
Part of: Ichthyosauria, order Ichthyosauria
Encyclopedia: Ichthyosaur