Dinosauria Online

Say hello to: IGUANODON

[ Iguanodon Forearm Muscles ]

IGUANODON (ig-WAHN-o-don) "Iguana Tooth" (Iguana + Greek odon = tooth, because its TEETH resembled those of the modern iguana lizard)

An Early Cretaceous ORNITHOPOD. The largest known specimens were 25 feet (7.5 m) long, 15 feet (4.5 m) tall, and weighed 5 tons (4.5 metric tons). This BIPEDAL, plant-eating dinosaur had three-toed FEET; its five-fingered HANDS had unique spike-like thumbs that grew at right angles to the other four fingers.

Traces of Iguanodon have been found on every continent except Antarctica. It was the second dinosaur named, and perhaps the first ever found. Several dozen adult specimens were found buried together in Belgium, which suggests that these animals traveled in HERDS.

Classification: Iguanodontidae, Ornithopoda, Ornithischia