1. a large herbivorous dinosaur of the Cretaceous period, known for its bipedal stance and thumb spikes
Usage: paleontology; often capitalized when referring to the genus

Examples

• The iguanodon was one of the first dinosaurs to be scientifically named and described.
• Fossils of iguanodon have been found across Europe and North America.
• The iguanodon could reach lengths of up to 30 feet and weighed several tons.
• Scientists believe the iguanodon used its distinctive thumb spikes for defense or feeding.
• Museum exhibits often feature skeletal reconstructions of the iguanodon alongside other Cretaceous dinosaurs.