noun
- a large extinct marine reptile with paddle-like limbs that lived during the Cretaceous period
Usage: paleontology
Examples
- The mosasaur was one of the dominant predators in ancient seas.
- Paleontologists discovered a complete mosasaur skeleton in the limestone quarry.
- Mosasaurs could grow up to 50 feet in length.
- The museum’s mosasaur exhibit shows how these reptiles adapted to marine life.
- Unlike dinosaurs, mosasaurs lived entirely in the ocean.
- The mosasaur’s powerful jaws contained rows of sharp teeth for catching fish.