Definition
ichthyosaurus
noun
- An extinct marine reptile of the Mesozoic era, resembling a dolphin with a long snout, four flippers, and a vertical tail fin.
Usage: paleontology; often capitalized when referring to the genus Ichthyosaurus
Examples
- The ichthyosaurus was one of the most successful marine predators of the Mesozoic era.
- Fossils of ichthyosaurs have been found on every continent.
- Unlike dinosaurs, ichthyosaurs were fully adapted to life in the ocean.
- The ichthyosaurus had large eyes that helped it see in deep water.
- Scientists believe ichthyosaurs gave birth to live young rather than laying eggs.